Retainer, Helical Compression Spr5340-01-490-6349

NSN 5340-01-490-6349 · NIIN 014906349 · Part number 6671266-1

Naval Sea Systems Command · FSC 5340 — Hardware, Commercial · FSG 53 — Hardware and Abrasives · CAGE 53711

Government record, cited

NSN 5340-01-490-6349 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-490-6349. Manufacturer of record part number: 6671266-1.

Also searched as 5340-01-490-6349 · 5340014906349 · NIIN 014906349 · 01-490-6349 · FSC 5340 Hardware, Commercial · CAGE 53711 · 6671266-1

Nearby stock numbers ← 5340-01-490-6334 Retainer, Rod End Locking · 5340-01-490-6350 Retainer, Helical Compression Spr →

Features

Retainer,helical Compression Spr — FSC 5340
Flange Diameter: 2.500 INCHES NOMINAL IN
Flange Thickness: 0.375 INCHES NOMINAL IN
Body Outside Diameter: 2.500 INCHES NOMINAL IN
Style Designator: IRREGULAR
Body Inside Diameter: 1.500 INCHES NOMINAL IN
Casehardening Indicator: NOT CASEHARDENED
Material: STEEL

Identification

NSN: 5340-01-490-6349
NIIN: 014906349
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives
Primary part number: 6671266-1
Manufacturer: Naval Sea Systems Command

General Description

The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-490-6349, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 7 specifications, 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	5340-01-490-6349
Primary Part Number	6671266-1
Item Name	Retainer,helical Compression Spr
FSC / FSG	5340 / 53 — Hardware, Commercial
Manufacturer	Naval Sea Systems Command
Status	ACTIVE
Flange Diameter	2.500 INCHES NOMINAL IN
Flange Thickness	0.375 INCHES NOMINAL IN
Body Outside Diameter	2.500 INCHES NOMINAL IN
Style Designator	IRREGULAR
Body Inside Diameter	1.500 INCHES NOMINAL IN
Casehardening Indicator	NOT CASEHARDENED
Material	STEEL

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
6671266-1 PRIMARY	Naval Sea Systems Command (USA)

No interchangeability data on file.

Other items in FSC 5340 — Hardware, Commercial

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

5340-00-000-0068

COVER,ACCESS

5340-00-000-0132

SEAT,HELICAL COMPRESSION SPRING

5340-00-000-8150

5340-00-000-8150 · Item name not on file

5340-00-001-1251

5340-00-001-1251 · Item name not on file

5340-00-001-1264

STRAP,WEBBING

5340-00-001-1265

STRAP,WEBBING

5340-00-001-1266

STRAP,WEBBING

5340-00-001-1275

HANDLE,DOOR

Frequently Asked Questions

What is NSN 5340-01-490-6349?

NSN 5340-01-490-6349 is a Retainer,helical Compression Spr, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.

What part numbers are listed for NSN 5340-01-490-6349?

NSN 5340-01-490-6349 has 1 manufacturer part number on file: 6671266-1 (Naval Sea Systems Command).

What are the specifications of 6671266-1?

Key specifications for 6671266-1: Flange Diameter: 2.500 INCHES NOMINAL IN; Overall Height: 3.174 INCHES NOMINAL IN; Flange Thickness: 0.375 INCHES NOMINAL IN; Body Outside Diameter: 2.500 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.

Is NSN 5340-01-490-6349 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). 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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