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Serrated Lock Ring

Model / MPN: 21271-00076 | NSN: 5365-00-405-7576
ITAR Registered seal

A locking device which is serrated on the inside and outside diameters. It may have outer serrations omitted on one or two sides for close edge installation. The inner serrations engage the mating serrations of bolts, inserts, nuts, studs or similar items to be locked in place. The outer serrations broach their way into parent material when driven or pressed into place.

Product Details
NATO Stock Number
5365-00-405-7576
Sold in multiples of
1 EA
DEMIL
NO
Inside Diameter
Between 0.263 inches and 0.270 inches
Pilot Diameter
0.343 inches
Overall Height
0.112 inches
Overall Outside Diameter
Between 0.395 inches and 0.404 inches
Outer Serration Quantity
24
Inner Serration Quantity
17
Side Outer Serrations Omitted For Close Edge Installation
Two sides
Material
Steel, qq-s-637, comp 1117
Material
Steel comp 1117
Surface Treatment
Cadmium and chromate
Surface Treatment
Cadmium, qq-p-416, type 2, class 3
Specification Data
81343-as51990-105p professional/industrial association specification
Solicitations
Solicitation Description Qty UOM Close Date
SPE4A718T353U Ring, Lock, Serrated 280 EA 05/29/2018

Pricing and Availability

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21271-00076 Cross Reference
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  • AA59558-104
  • 10160101
  • AS51990-105P