Just as advertised, it fit and it works.
Edward B
Verified Purchase
Silicon Nipple MS25171-3S Blk
October 30, 2025
Great Product
Boss H
Verified Purchase
Silicon Nipple MS25171-1S Blk
July 31, 2025
Great Product
Boss H
Verified Purchase
Silicon Nipple MS25171-2S Blk
July 31, 2025
Norm P
Verified Purchase
Silicon Nipple MS25171-3S Wht
February 1, 2025
The 1s nipples were too small. The 2s were too large. There needs to be a size in between.
Horst W
Verified Purchase
Silicone Nipple MS25171-1S Red
November 13, 2024
these nipples are age old,serve a practical purpose.
Horst W
Verified Purchase
Silicon Nipple MS25171-2S Red
November 9, 2024
Horst W
Verified Purchase
Silicon Nipple MS25171-2S Blk
November 9, 2024
Great quality
Wyoming B
Verified Purchase
Silicon Nipple MS25171-2S Red
November 2, 2024
Paul F
Verified Purchase
Silicon Nipple MS25171-4S Wht
August 22, 2024
Paul F
Verified Purchase
Silicon Nipple MS25171-3S Wht
August 22, 2024
Paul F
Verified Purchase
Silicone Nipple MS25171-1S Red
August 22, 2024
Excellent for marine generators
Gary A
Verified Purchase
Silicon Nipple MS25171-3S Blk
April 4, 2024
Great product.
Steiner G
Verified Purchase
Silicone Nipple MS25171-1S Red
March 26, 2024
Great product.
Steiner G
Verified Purchase
Silicon Nipple MS25171-2S Wht
March 26, 2024
fit well
Daniel J
Verified Purchase
Silicon Nipple MS25171-2S Wht
March 19, 2024
THESE WORK GREAT
Dennis L
Verified Purchase
Silicon Nipple MS25171-3S Wht
March 16, 2024
As advertised, pliable and grippy material.
Rich P
Verified Purchase
Silicon Nipple MS25171-4S Wht
January 2, 2024
Perfect, performed as expected
Stephen S
Verified Purchase
Silicon Nipple MS25171-1S Wht
December 26, 2023
Perfect, performed as expected
Stephen S
Verified Purchase
Silicone Nipple MS25171-1S Red
December 26, 2023
Great product
Boss H
Verified Purchase
Silicon Nipple MS25171-1S Blk
December 26, 2023
Great product
Boss H
Verified Purchase
Silicon Nipple MS25171-2S Blk
December 26, 2023
As advertised
Harry B
Verified Purchase
Silicon Nipple MS25171-4S Wht
November 24, 2023
William D
Verified Purchase
Silicon Nipple MS25171-1S Wht
November 17, 2023
The parts ordered were exactly what I wanted. The quality and looks are very good. These rubber items take strong pulling to set in place without shape distortion or stretching past the point of elasticity. Now I need to wait 25 years to report on longevity.
Alessandro A
Verified Purchase
Silicon Nipple MS25171-4S Red
November 2, 2023
Brandon S
Verified Purchase
Silicon Nipple MS25171-1S Wht
October 26, 2023
Brandon S
Verified Purchase
Silicon Nipple MS25171-1S Blk
October 26, 2023
Brandon S
Verified Purchase
Silicone Nipple MS25171-1S Red
October 26, 2023
Brandon S
Verified Purchase
Silicon Nipple MS25171-3S Wht
October 26, 2023
Brandon S
Verified Purchase
Silicon Nipple MS25171-2S Wht
October 26, 2023
Brandon S
Verified Purchase
Silicon Nipple MS25171-3S Red
October 26, 2023
Brandon S
Verified Purchase
Silicon Nipple MS25171-2S Red
October 26, 2023
Brandon S
Verified Purchase
Silicon Nipple MS25171-2S Blk
October 26, 2023
Brandon S
Verified Purchase
Silicon Nipple MS25171-3S Blk
October 26, 2023
nice
Darwyn D
Verified Purchase
Silicon Nipple MS25171-3S Wht
October 6, 2023
nice
Darwyn D
Verified Purchase
Silicone Nipple MS25171-1S Red
October 6, 2023
Chep G
Verified Purchase
Silicon Nipple MS25171-1S Wht
September 5, 2023
Chep G
Verified Purchase
Silicone Nipple MS25171-1S Red
September 5, 2023
Chep G
Verified Purchase
Silicon Nipple MS25171-1S Blk
September 5, 2023
Chep G
Verified Purchase
Silicon Nipple MS25171-2S Wht
September 5, 2023
Chep G
Verified Purchase
Silicon Nipple MS25171-3S Wht
September 5, 2023
Chep G
Verified Purchase
Silicon Nipple MS25171-3S Red
September 5, 2023
Chep G
Verified Purchase
Silicon Nipple MS25171-4S Wht
September 5, 2023
Chep G
Verified Purchase
Silicon Nipple MS25171-2S Red
September 5, 2023
Chep G
Verified Purchase
Silicon Nipple MS25171-2S Blk
September 5, 2023
Chep G
Verified Purchase
Silicon Nipple MS25171-4S Red
September 5, 2023
Chep G
Verified Purchase
Silicon Nipple MS25171-4S Blk
September 5, 2023
Chep G
Verified Purchase
Silicon Nipple MS25171-3S Blk
September 5, 2023
J B
Verified Purchase
Silicon Nipple MS25171-3S Red
August 23, 2023
J B
Verified Purchase
Silicon Nipple MS25171-2S Red
August 23, 2023
Works.
Tango L
Verified Purchase
Silicon Nipple MS25171-3S Red
August 22, 2023
Works.
Tango L
Verified Purchase
Silicon Nipple MS25171-3S Blk
August 22, 2023
Works.
Tango L
Verified Purchase
Silicon Nipple MS25171-3S Wht
August 22, 2023
They worked great for my application,
James E
Verified Purchase
Silicon Nipple MS25171-4S Red
July 14, 2023
They worked great for my application,
James E
Verified Purchase
Silicon Nipple MS25171-2S Red
July 14, 2023
They worked great for my application,
James E
Verified Purchase
Silicon Nipple MS25171-4S Wht
July 14, 2023
good quality
Keith W
Verified Purchase
Silicon Nipple MS25171-4S Wht
May 13, 2023
good quality
Keith W
Verified Purchase
Silicon Nipple MS25171-3S Wht
May 13, 2023
Good quality product.
Keith W
Verified Purchase
Silicon Nipple MS25171-2S Wht
May 12, 2023
Las V
Verified Purchase
Silicon Nipple MS25171-3S Wht
April 4, 2023
Las V
Verified Purchase
Silicon Nipple MS25171-3S Red
April 4, 2023
Must have
Genavco A
Verified Purchase
Silicone Nipple MS25171-1S Red
February 14, 2023
Download A-A-59178B from everyspec for a better drawing.
John B
February 2, 2023
These works great. just be sure to measure to get the correct size for the wire and for the lug.
Owl E
Verified Purchase
Silicone Nipple MS25171-1S Red
January 8, 2023
These works great. just be sure to measure to get the correct size for the wire and for the lug.
Owl E
Verified Purchase
Silicon Nipple MS25171-3S Wht
January 8, 2023
These works great. just be sure to measure to get the correct size for the wire and for the lug.
Owl E
Verified Purchase
Silicon Nipple MS25171-2S Red
January 8, 2023
These works great. just be sure to measure to get the correct size for the wire and for the lug.
Owl E
Verified Purchase
Silicon Nipple MS25171-4S Blk
January 8, 2023
Nice quality in a variety of sizes. Priced right so you can try several sizes to get the best fit.
Norman A
Verified Purchase
Silicon Nipple MS25171-3S Red
August 24, 2022
Nice quality in a variety of sizes. Priced right so you can try several sizes to get the best fit.
Norman A
Verified Purchase
Silicon Nipple MS25171-3S Blk
August 24, 2022
Nice quality in a variety of sizes. Priced right so you can try several sizes to get the best fit.
Norman A
Verified Purchase
Silicon Nipple MS25171-4S Blk
August 24, 2022
Nice quality in a variety of sizes. Priced right so you can try several sizes to get the best fit.
Norman A
Verified Purchase
Silicon Nipple MS25171-4S Red
August 24, 2022
Well made aircraft grade. The hardest part is figuring out which sizes are needed. This item has a useful table to help.
Brian R
Verified Purchase
Silicon Nipple MS25171-3S Wht
August 23, 2022
Donald F
Verified Purchase
Silicon Nipple MS25171-2S Blk
July 16, 2022
Donald F
Verified Purchase
Silicon Nipple MS25171-2S Red
July 16, 2022
Daniel D
Verified Purchase
Silicone Nipple MS25171-1S Red
July 13, 2022
Just as the original nipple in the aircraft.
Walter L
Verified Purchase
Silicon Nipple MS25171-3S Red
June 21, 2022
Pick the right size for your wire diameter.
Joseph J
Verified Purchase
Silicon Nipple MS25171-1S Wht
June 17, 2022
Pick the right size for your wire diameter.
Joseph J
Verified Purchase
Silicon Nipple MS25171-1S Blk
June 17, 2022
Pick the right size for your wire diameter.
Joseph J
Verified Purchase
Silicon Nipple MS25171-2S Red
June 17, 2022
Pick the right size for your wire diameter.
Joseph J
Verified Purchase
Silicon Nipple MS25171-3S Red
June 17, 2022
Pick the right size for your wire diameter.
Joseph J
Verified Purchase
Silicon Nipple MS25171-4S Red
June 17, 2022
Rj Z
Verified Purchase
Silicon Nipple MS25171-4S Blk
May 21, 2022
Rj Z
Verified Purchase
Silicon Nipple MS25171-1S Blk
May 18, 2022
Rj Z
Verified Purchase
Silicon Nipple MS25171-2S Blk
May 18, 2022
Rj Z
Verified Purchase
Silicon Nipple MS25171-3S Blk
May 18, 2022
Good physical coverage that will decrease the likelihood of unwanted electrical contact with surrounding metallic objects. Pick the correct size for wire and post. The cost is low enough to buy multiples.
Chris D
Verified Purchase
Silicon Nipple MS25171-3S Blk
May 17, 2022
The small size worked perfectly on my magneto P-leads.
Michael D
Verified Purchase
Silicon Nipple MS25171-1S Wht
May 12, 2022
Good product. Would purchase again.
Red M
Verified Purchase
Silicon Nipple MS25171-3S Wht
April 10, 2022
Good product. Would purchase again.
Red M
Verified Purchase
Silicon Nipple MS25171-2S Red
April 10, 2022
Exactly what I needed
Todd H
Verified Purchase
Silicone Nipple MS25171-1S Red
March 1, 2022
Robert E
Verified Purchase
Silicon Nipple MS25171-2S Red
January 6, 2022
Nice
Gary L
Verified Purchase
Silicon Nipple MS25171-1S Blk
December 4, 2021
Positive vs Negative on my battery is not super easy to see in my rather dim hanger lighting, so when I ripped I white boot I went back with black and red (orange, really) boots.
James J
Verified Purchase
Silicon Nipple MS25171-4S Blk
November 23, 2021
Keiji K
Verified Purchase
Silicone Nipple MS25171-1S Red
November 5, 2021
Keiji K
Verified Purchase
Silicon Nipple MS25171-1S Blk
November 5, 2021
Keiji K
Verified Purchase
Silicon Nipple MS25171-4S Blk
November 5, 2021
I did not expect all red. A misunderstanding..
Repeat order in white
T R
Verified Purchase
Silicone Nipple MS25171-1S Red
September 12, 2021
Mike M
Verified Purchase
Silicon Nipple MS25171-2S Red
September 7, 2021
OK
Brm A
Verified Purchase
Silicon Nipple MS25171-2S Red
August 28, 2021
Excellent responsive quoting and support. Thanks!
Lockheed M
Verified Purchase
Silicone Nipple MS25171-1S Red
July 15, 2021
Easy to order and good selection for our needs.
Thanks!
Lockheed M
Verified Purchase
Silicone Nipple MS25171-1S Red
July 7, 2021
Infinity A
Verified Purchase
Silicon Nipple MS25171-2S Red
July 6, 2021
Infinity A
Verified Purchase
Silicon Nipple MS25171-2S Blk
July 6, 2021
Excellent part!
William M
Verified Purchase
Silicon Nipple MS25171-2S Red
July 1, 2021
These are the trick for making secure electrical connections. Kinda hard to find too.
Cowans A
Verified Purchase
Silicon Nipple MS25171-3S Red
May 29, 2021
perfect
fast shipping
Ham K
May 21, 2021
came just as expected!
Mike
May 3, 2021
Fits properly over terminal on Concord RG-35AXC battery and provides proper electrical separation.
Michael H
March 28, 2021
I use them for the starter cable on Marine generators
Gary
March 15, 2021
Great product, good price
David E
February 10, 2021
Needed these electric terminal nipples to replace the old ones on panel. Of high quality and perfect for the job.
John W
September 19, 2020
Electric nipples of very good quality. Perfect for my project
John W
September 12, 2020
Exactly what I needed on the Generator and battery.
Carolyon T
September 12, 2020
Received as ordered
Peter M
May 25, 2020
5 stars. I used 4ea ACS red silicon nipples & ACS lugs on 2ea batt+ cables.
William M
April 12, 2020
I could gush about how great these guys are, instead, Ill just say Id all but given up finding some of the items I found here. From the prices on these near impossible items, its clear , they are not trying to retire from one sale. You wont be disappointed with the parts or service.
Ed M
March 20, 2020
these are a good product, have used before.
William L
February 6, 2020
Size matters. A #1 is appropriate for up to a single 12 ga. wire (or 3-4 22 ga.). A #3 would work with a battery terminal/cable.
Quality is good.
George S
February 2, 2020
Perfect Fit!
David
September 21, 2019
They made of good materials and dimensionally accurate. The black is black and the white is white, but the red is as shown - kind of a brownish orange. I would prefer a pure red nipple, but that does not diminish the value of these for insulation protection of terminals - which they do well.
Ronald G
July 11, 2019
Great quality and a perfect replacement item for the disintegrating old boots on your contactors/battery/etc. Get a couple of each size. Try -4S for battery terminals and contactor power terminals and -1S for most smaller posts such as magnetos and contactor coil posts.
Ray A
June 3, 2019
I ended up buying all four available sizes, keeping them in stock for when I need them. Fit and function are good!
James H
June 5, 2018
Just what they appear to be. Can be stretched a bit for a snug fit.
Terry H
June 4, 2018
They are a hard to find item. But the ones I got from Aircraft Spruce really work great. Thank you.
Dennis B
May 4, 2018
Much appreciate ACS stocking these things are they are an obscure item tough to find elsewhere.
The quality of the rubber seems good. I stock a few of each size as the price is right and then I have the right one available when I need it. These are not the sort of item you want to put the project on hold while you order one.
Bruce B
December 30, 2017
Excellent product that is difficult to find locally, but Spruce is a prompt shipper. Thanks guys!
Steve
April 2, 2017
Worked as expected
David S
Verified Purchase
Silicon Nipple MS25171-1S Wht
August 6, 2021
As expected
Jp G
August 24, 2019
I dont like that they care so easily.
Richard B
Verified Purchase
Silicon Nipple MS25171-3S Wht
February 27, 2024
Bought one that tore apart taking it out of ACS plastic bag. My first thought was they found out exactly how thin and how cheap they can make these now !
Sent it back to ACS for replacement
Doug L
October 22, 2017
Aircraft Spruce Canada
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