Seat, Helical Compression Spring5340-01-541-2961

NSN 5340-01-541-2961 · NIIN 015412961 · Part number 7653291-1

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

Government record, cited

NSN 5340-01-541-2961 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-541-2961. Manufacturer of record part number: 7653291-1.

Also searched as 5340-01-541-2961 · 5340015412961 · NIIN 015412961 · 01-541-2961 · FSC 5340 Hardware, Commercial · CAGE 53711 · 7653291-1

Nearby stock numbers ← 5340-01-541-2955 Bracket, Angle · 5340-01-541-2976 Bracket, Angle →

Features

Seat,helical Compression Spring — FSC 5340
First Step Diameter: 0.6400 INCHES NOMINAL IN
End Diameter: 0.5200 INCHES NOMINAL IN
Countersink Diameter: 0.2530 INCHES MINIMUM AND 0.2610 INCHES MAXIMUM IN
Style Designator: SEAT
Counterbore Length: 0.0300 INCHES NOMINAL IN
Material: PLASTIC
1 manufacturer part number on file

Identification

NSN: 5340-01-541-2961
NIIN: 015412961
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives
Primary part number: 7653291-1
Manufacturer: Naval Sea Systems Command

General Description

The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-541-2961, 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 6 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. Unit of issue: EA.

Technical Specifications

Parameter	Value
NSN	5340-01-541-2961
Primary Part Number	7653291-1
Item Name	Seat,helical Compression Spring
FSC / FSG	5340 / 53 — Hardware, Commercial
Manufacturer	Naval Sea Systems Command
Status	ACTIVE
First Step Diameter	0.6400 INCHES NOMINAL IN
End Diameter	0.5200 INCHES NOMINAL IN
Countersink Diameter	0.2530 INCHES MINIMUM AND 0.2610 INCHES MAXIMUM IN
Style Designator	SEAT
Counterbore Length	0.0300 INCHES NOMINAL IN
Material	PLASTIC

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
Unit of Issue	EA

Cross-Reference Index

Part Number	Manufacturer
7653291-1 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 5340-01-541-2961?

NSN 5340-01-541-2961 is a Seat,helical Compression Spring, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.

What part numbers are listed for NSN 5340-01-541-2961?

NSN 5340-01-541-2961 has 1 manufacturer part number on file: 7653291-1 (Naval Sea Systems Command).

What are the specifications of 7653291-1?

Key specifications for 7653291-1: Overall Height: 0.1800 INCHES NOMINAL IN; First Step Diameter: 0.6400 INCHES NOMINAL IN; End Diameter: 0.5200 INCHES NOMINAL IN; Countersink Diameter: 0.2530 INCHES MINIMUM AND 0.2610 INCHES MAXIMUM IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 5340-01-541-2961 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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