PartsTable TECHNICAL DATA SHEET

NSN 5325-01-666-2898Government record, cited

Ring, Retaining5325-01-666-2898

NSN 5325-01-666-2898 · NIIN 016662898 · Part number M27426-3171B

Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp · FSC 5325 — Fastening Devices · FSG 53 — Hardware and Abrasives · CAGE 78286

Government record, cited

NSN 5325-01-666-2898 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-666-2898. Manufacturer of record part number: M27426-3171B.

Also searched as 5325-01-666-2898 · 5325016662898 · NIIN 016662898 · 01-666-2898 · FSC 5325 Fastening Devices · CAGE 78286 · M27426-3171B

Nearby stock numbers ← 5325-01-666-2893 Ring, Retaining · 5325-01-666-2905 Ring, Retaining →

Features

Ring,retaining — FSC 5325
Supplementary Features: TECHNICAL MAINTENANCE MANUAL:65-21-04
1 manufacturer part number on file
Manufacturer of record: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp

Identification

NSN: 5325-01-666-2898
NIIN: 016662898
FSC: 5325 — Fastening Devices
FSG: 53 — Hardware and Abrasives
Primary part number: M27426-3171B
Manufacturer: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp

General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-666-2898, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5325-01-666-2898
Primary Part Number	M27426-3171B
Item Name	Ring,retaining
FSC / FSG	5325 / 53 — Fastening Devices
Manufacturer	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Status	ACTIVE
Supplementary Features	TECHNICAL MAINTENANCE MANUAL:65-21-04

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	Hazardous per DLA record (HMIC Y)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
M27426-3171B PRIMARY	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)

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 5325-01-666-2898?

NSN 5325-01-666-2898 is a Ring,retaining, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5325, Fastening Devices. Status: active.

What part numbers are listed for NSN 5325-01-666-2898?

NSN 5325-01-666-2898 has 1 manufacturer part number on file: M27426-3171B (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).

What are the specifications of M27426-3171B?

Key specifications for M27426-3171B: Supplementary Features: TECHNICAL MAINTENANCE MANUAL:65-21-04; Special Features: USED FOR INTERMEDIATE GEAR BOX OIL LEVEL SIGHT GAGE; End Item Identification: SIKORSKY HELICOPTER MODEL S-92A A. 1 specification is documented in the U.S. Government catalog.

Is NSN 5325-01-666-2898 hazardous material?

Hazardous per DLA record (HMIC Y). 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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