Product Details | SERRATED LOCK RING

5365-01-177-3427 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.

Part Alternates: DRA163C, DRA-163-C, RL3128SB8, RL3128SB-8, RLRR3128SA8 , RLRR3128SB8, 5365-01-177-3427, 01-177-3427, 5365011773427, 011773427

Hardware and Abrasives | Bushings, Rings, Shims, and Spacers

Supply Group (FSG) NSN Assign. NIIN
53 23 APR 1984 01-177-3427

Drawings & Photos | NSN 5365-01-177-3427


Demand History | NSN 5365-01-177-3427

Part Number Request Date QTY Origin
RLRR3128SA8 2025-01-22 2 Japan
RL3128SB-8 2021-06-159 6 DIBBS
RLRR3128SA8 2021-06-159 6 DIBBS
RLRR3128SB8 2021-06-159 6 DIBBS
RL3128SB-8 2021-04-112 8 DIBBS
RLRR3128SA8 2021-04-112 8 DIBBS
RLRR3128SB8 2021-04-112 8 DIBBS
RL3128SB-8 2020-11-309 16 DIBBS
RLRR3128SA8 2020-11-309 16 DIBBS
RLRR3128SB8 2020-11-309 16 DIBBS
RL3128SB-8 2020-10-304 6 DIBBS
RLRR3128SA8 2020-10-304 6 DIBBS
RLRR3128SB8 2020-10-304 6 DIBBS
RL3128SB-8 2020-10-299 9 DIBBS
RLRR3128SA8 2020-10-299 9 DIBBS
RLRR3128SB8 2020-10-299 9 DIBBS
RL3128SB-8 2020-10-281 6 DIBBS
RLRR3128SA8 2020-10-281 6 DIBBS
RLRR3128SB8 2020-10-281 6 DIBBS
RL3128SB-8 2020-09-246 6 DIBBS
RLRR3128SA8 2020-09-246 6 DIBBS
RLRR3128SB8 2020-09-246 6 DIBBS
RL3128SB-8 2020-08-238 6 DIBBS
RLRR3128SA8 2020-08-238 6 DIBBS
RLRR3128SB8 2020-08-238 6 DIBBS
5365-01-177-3427 2016-06-159 50 United States
5365-01-177-3427 2016-01-20 25 United States
5365-01-177-3427 2015-12-342 25 United States

Cross Reference | NSN 5365-01-177-3427

Part Number Cage Code Manufacturer
DRA-163-C 83324 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
RL3128SB-8 83324 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
RLRR3128SA8 83324 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
RLRR3128SB8 83324 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS

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Technical Data | NSN 5365-01-177-3427

Characteristic Specifications
MATERIAL STEEL, QQ-S-637, COMP 1117
SURFACE TREATMENT CADMIUM, QQ-P-416, TYPE 2, CLASS 3
OVERALL OUTSIDE DIAMETER 0.509 INCHES MINIMUM AND 0.519 INCHES MAXIMUM
INSIDE DIAMETER 0.318 INCHES MINIMUM AND 0.328 INCHES MAXIMUM
OVERALL HEIGHT 0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM
PILOT DIAMETER 0.447 INCHES MINIMUM AND 0.557 INCHES MAXIMUM
OUTER SERRATION QUANTITY 16
INNER SERRATION QUANTITY 20
SIDE OUTER SERRATIONS OMITTED FOR CLOSE EDGE INSTALLATION TWO SIDES
SPECIAL FEATURES MATL STEEL UNS G11170 ASTM A108 AND CASEHARDENED 36.0/45.0 ROCKWELL C

Restrictions/Controls & Freight Information | NSN 5365-01-177-3427

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information