PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31489Body,buttstock Assembly

Charles Reed Knight Jr Dba Knight's Armament Company · NSN 1005-01-703-1538 · FSC 1005 · No Item Name Available
Verified by PartsTable
NSN 1005-01-703-1538 — this item is cataloged by the U.S. Government under National Stock Number 1005-01-703-1538. Primary manufacturer part number: 31489.
Features
  • Body,buttstock Assembly — FSC 1005
  • 1 verified cross-reference
  • Primary manufacturer: Charles Reed Knight Jr Dba Knight's Armament Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Body,buttstock Assembly, cataloged under National Stock Number 1005-01-703-1538, is classified within Federal Supply Class 1005 (No Item Name Available) of the Weapons group. The primary manufacturer of record is Charles Reed Knight Jr Dba Knight's Armament Company. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1005-01-703-1538
Primary Part Number31489
Item NameBody,buttstock Assembly
FSC / FSG1005 / 10 — No Item Name Available
ManufacturerCharles Reed Knight Jr Dba Knight's Armament Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4940-01-117-907031489 INTERCHANGEABLE
Flange
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
6650-01-508-777031489 INTERCHANGEABLE
Mirror,optical Instrument
Cooper Surgical
Cross-Reference Index
Part NumberManufacturer
31489 PRIMARY Charles Reed Knight Jr Dba Knight's Armament Company (USA)
Related Parts
4940-01-117-9070INTERCHANGEABLE
FLANGE
31489
6650-01-508-7770INTERCHANGEABLE
MIRROR,OPTICAL INSTRUMENT
31489

Frequently Asked Questions

What is NSN 1005-01-703-1538?

NSN 1005-01-703-1538 is a Body,buttstock Assembly, manufactured by Charles Reed Knight Jr Dba Knight's Armament Company, classified under FSC 1005 (No Item Name Available). Status: active.

What are the part numbers for NSN 1005-01-703-1538?

NSN 1005-01-703-1538 has 1 cross-referenced part number: 31489 (Charles Reed Knight Jr Dba Knight's Armament Company).

What NSN replaces 1005-01-703-1538?

There are 2 known substitutes for 1005-01-703-1538: 4940-01-117-9070, 6650-01-508-7770. Verify interchangeability with system specifications before substitution.

What are the specifications of 31489?

Key specifications for 31489: Part Name Assigned by Controlling Agency: M110 COLLAPSIBLE STOCK KIT(6.5); Special Features: 6.5CM CARBINE COLLAPSIBLE STOCK KIT. NHA; M110 CONVERSION KIT, 6.5 CRDMR, 22" NSN 1005-01-689-0749. CONTAINS; LOCK NUT, SLOTS P/N 31661, BUFFER TUBE P/N 25758, RECOIL SPRING P/N 24363,, BUFFER P/N 21057, SLING MOUNT P/N 30984-1 AND SPRING (BOLT CATCH) P/N 30199. CM. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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