Ring, Retaining5325-01-126-4978

NSN 5325-01-126-4978 · NIIN 011264978

FSC 5325 — Fastening Devices · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5325-01-126-4978 · 5325011264978 · NIIN 011264978 · 01-126-4978 · FSC 5325 Fastening Devices

Nearby stock numbers ← 5325-01-126-4813 · 5325-01-126-5164 →

Features

Ring,retaining — FSC 5325
Material Hardness Rating: 52.0 ROCKWELL C MINIMUM
Usage Design: INTERNAL
Material Diameter: 0.0615 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM IN
Material Document and Classification: AMS 5112 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A228 ASSN STD 2ND MATERIAL RESPONSE
Cross-Sectional Shape Style: ROUND
Outside Diameter: 5.233 INCHES MINIMUM AND 5.235 INCHES MAXIMUM IN
Casehardening Indicator: NOT CASEHARDENED

Identification

NSN: 5325-01-126-4978
NIIN: 011264978
FSC: 5325 — Fastening Devices
FSG: 53 — Hardware and Abrasives

General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-126-4978, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5325-01-126-4978
Item Name	Ring,retaining
FSC / FSG	5325 / 53 — Fastening Devices
Status	ACTIVE
Material Hardness Rating	52.0 ROCKWELL C MINIMUM
Usage Design	INTERNAL
Material Diameter	0.0615 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM IN
Material Document and Classification	AMS 5112 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A228 ASSN STD 2ND MATERIAL RESPONSE
Cross-Sectional Shape Style	ROUND
Outside Diameter	5.233 INCHES MINIMUM AND 5.235 INCHES MAXIMUM IN
Casehardening Indicator	NOT CASEHARDENED
Ring Style	DOUBLE LEG OFFSET
Material	STEEL COMP 1090 OR STEEL UNS K08500

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
729725	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 5325 — Fastening Devices

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5325-00-000-1884

5325-00-000-1884 · Item name not on file

5325-00-000-9988

5325-00-000-9988 · Item name not on file

5325-00-001-1567

RING,RETAINING

5325-00-001-2043

FASTENER,PANEL

5325-00-001-3842

RING,RETAINING

5325-00-001-3858

5325-00-001-3858 · Item name not on file

5325-00-001-3871

RING,RETAINING

5325-00-001-4317

RING,RETAINING

Frequently Asked Questions

What is NSN 5325-01-126-4978?

NSN 5325-01-126-4978 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.

What are the specifications of 5325-01-126-4978?

Key specifications for 5325-01-126-4978: Material Hardness Rating: 52.0 ROCKWELL C MINIMUM; Usage Design: INTERNAL; Material Diameter: 0.0615 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM IN; Material Document and Classification: AMS 5112 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A228 ASSN STD 2ND MATERIAL RESPONSE. 9 specifications are documented in the U.S. Government catalog.

Is NSN 5325-01-126-4978 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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