Ring, Retaining5325-01-549-4551

NSN 5325-01-549-4551 · NIIN 015494551

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

Government record, cited

Also searched as 5325-01-549-4551 · 5325015494551 · NIIN 015494551 · 01-549-4551 · FSC 5325 Fastening Devices · M27426-4130D · M2742640130D · MIL-DTL-27426/4

Nearby stock numbers ← 5325-01-549-4235 Grommet, Nonmetallic · 5325-01-549-4585 Ring, Retaining →

Features

Ring,retaining — FSC 5325
Supplementary Features: SHAFT DIAMETER - 1.875 INCHES; RING THICKNESS - .062 INCHES; RADIAL WALL .158 INCHES; GROOVE DIAMETER - 1.989 INCHES; GROOVE WIDTH - .068 INCHES; NOMINAL GROVE DEPTH - .057 INCHES IN
Outside Diameter: 2.008 INCHES NOMINAL IN
Ring Style: SPIRAL
Material: STEEL CORROSION RESISTING

Identification

NSN: 5325-01-549-4551
NIIN: 015494551
FSC: 5325 — Fastening Devices
FSG: 53 — Hardware and Abrasives

General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-549-4551, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5325-01-549-4551
Item Name	Ring,retaining
FSC / FSG	5325 / 53 — Fastening Devices
Status	ACTIVE
Supplementary Features	SHAFT DIAMETER - 1.875 INCHES; RING THICKNESS - .062 INCHES; RADIAL WALL .158 INCHES; GROOVE DIAMETER - 1.989 INCHES; GROOVE WIDTH - .068 INCHES; NOMINAL GROVE DEPTH - .057 INCHES IN
Outside Diameter	2.008 INCHES NOMINAL IN
Ring Style	SPIRAL
Material	STEEL CORROSION RESISTING

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
M27426-4130D	5/9 Secondary reference U.S. Government activity
M2742640130D	2/2 Government specification standardization U.S. Government activity
MIL-DTL-27426/4	4/1 Identification 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 5325-01-549-4551?

NSN 5325-01-549-4551 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.

What are the specifications of 5325-01-549-4551?

Key specifications for 5325-01-549-4551: Supplementary Features: SHAFT DIAMETER - 1.875 INCHES; RING THICKNESS - .062 INCHES; RADIAL WALL .158 INCHES; GROOVE DIAMETER - 1.989 INCHES; GROOVE WIDTH - .068 INCHES; NOMINAL GROVE DEPTH - .057 INCHES IN; Outside Diameter: 2.008 INCHES NOMINAL IN; Ring Style: SPIRAL; Special Features: SPECIFICATION SHEET MIL-DTL-27426/4 (TYPE 2B02). 4 specifications are documented in the U.S. Government catalog.

Is NSN 5325-01-549-4551 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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