PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14643Spring,helical,extension

Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc · NSN 1005-01-632-2957 · FSC 1005 · No Item Name Available
Verified by PartsTable
NSN 1005-01-632-2957 — this item is cataloged by the U.S. Government under National Stock Number 1005-01-632-2957. Primary manufacturer part number: 14643.
Features
  • Spring,helical,extension — FSC 1005
  • 1 verified cross-reference
  • Primary manufacturer: Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Spring,helical,extension, cataloged under National Stock Number 1005-01-632-2957, is classified within Federal Supply Class 1005 (No Item Name Available) of the Weapons group. The primary manufacturer of record is Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1005-01-632-2957
Primary Part Number14643
Item NameSpring,helical,extension
FSC / FSG1005 / 10 — No Item Name Available
ManufacturerBarrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5360-00-200-54287000952 INTERCHANGEABLE
Spring,helical,compression
U S Army Tank Automotive Command Amsta-Im-Mm
2910-00-358-45128409926 INTERCHANGEABLE
Clamp,choke Rod,carburetor
U S Army Tank Automotive Command Amsta-Im-Mm
6625-00-404-6950SCB91379 INTERCHANGEABLE
Block Support
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
1630-00-780-581714643 INTERCHANGEABLE
Sleeve,piston
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5962-01-134-3061 INTERCHANGEABLE
Microcircuit,memory
5330-01-429-485714643 INTERCHANGEABLE
Gasket
Natco/carlton Lp
3815-01-513-58672HA500 INTERCHANGEABLE
Roller,roller Fairlead
Oshkosh Defense Llc
Cross-Reference Index
Part NumberManufacturer
14643 PRIMARY Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc (USA)
Related Parts
5360-00-200-5428INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
7000952
2910-00-358-4512INTERCHANGEABLE
CLAMP,CHOKE ROD,CARBURETOR
8409926
6625-00-404-6950INTERCHANGEABLE
BLOCK SUPPORT
SCB91379
1630-00-780-5817INTERCHANGEABLE
SLEEVE,PISTON
14643
5962-01-134-3061INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5330-01-429-4857INTERCHANGEABLE
GASKET
14643
3815-01-513-5867INTERCHANGEABLE
ROLLER,ROLLER FAIRLEAD
2HA500

Frequently Asked Questions

What is NSN 1005-01-632-2957?

NSN 1005-01-632-2957 is a Spring,helical,extension, manufactured by Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc, classified under FSC 1005 (No Item Name Available). Status: active.

What are the part numbers for NSN 1005-01-632-2957?

NSN 1005-01-632-2957 has 1 cross-referenced part number: 14643 (Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc).

What NSN replaces 1005-01-632-2957?

There are 7 known substitutes for 1005-01-632-2957: 5360-00-200-5428, 2910-00-358-4512, 6625-00-404-6950 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14643?

Key specifications for 14643: Part Name Assigned by Controlling Agency: BARREL SPRING ASSEMBLY. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com