PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18221Receiver,small Arms

Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc · NSN 1005-01-679-8105 · FSC 1005 · No Item Name Available
Verified by PartsTable
NSN 1005-01-679-8105 — this item is cataloged by the U.S. Government under National Stock Number 1005-01-679-8105. Primary manufacturer part number: 18221.
Features
  • Receiver,small Arms — FSC 1005
  • 1 verified cross-reference
  • Primary manufacturer: Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Receiver,small Arms, cataloged under National Stock Number 1005-01-679-8105, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1005-01-679-8105
Primary Part Number18221
Item NameReceiver,small Arms
FSC / FSG1005 / 10 — No Item Name Available
ManufacturerBarrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5998-00-261-8726454066-1 INTERCHANGEABLE
Circuit Card Assembly
Raytheon Company Dba Raytheon Co
5935-00-806-88131822-1 INTERCHANGEABLE
Connector,plug,electrical
Microwave Devices Inc
5930-00-923-38771820-1 INTERCHANGEABLE
Switch,pressure
Dwyer Instruments Inc
4730-01-061-559918211 INTERCHANGEABLE
Coupling Half,self-Sealing
Templeton Kenly and Co Inc
Cross-Reference Index
Part NumberManufacturer
18221 PRIMARY Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc (USA)
Related Parts
5998-00-261-8726INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
454066-1
5935-00-806-8813INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
1822-1
5930-00-923-3877INTERCHANGEABLE
SWITCH,PRESSURE
1820-1
4730-01-061-5599INTERCHANGEABLE
COUPLING HALF,SELF-SEALING
18211

Frequently Asked Questions

What is NSN 1005-01-679-8105?

NSN 1005-01-679-8105 is a Receiver,small Arms, 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 1005-01-679-8105?

NSN 1005-01-679-8105 has 1 cross-referenced part number: 18221 (Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc).

What NSN replaces 1005-01-679-8105?

There are 4 known substitutes for 1005-01-679-8105: 5998-00-261-8726, 5935-00-806-8813, 5930-00-923-3877 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18221?

Key specifications for 18221: Part Name Assigned by Controlling Agency: RECEIVER, LOWER, COMPLETE, LOW-IR FDE. 1 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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