PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18761Bolt,breech

Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc · NSN 1005-01-691-9055 · FSC 1005 · No Item Name Available
Verified by PartsTable
NSN 1005-01-691-9055 — this item is cataloged by the U.S. Government under National Stock Number 1005-01-691-9055. Primary manufacturer part number: 18761.
Features
  • Bolt,breech — FSC 1005
  • 1 verified cross-reference
  • Primary manufacturer: Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Bolt,breech, cataloged under National Stock Number 1005-01-691-9055, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1005-01-691-9055
Primary Part Number18761
Item NameBolt,breech
FSC / FSG1005 / 10 — No Item Name Available
ManufacturerBarrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
1560-00-104-7404421579 INTERCHANGEABLE
Diffuser Block
Simmonds Precision Products Inc
5950-00-523-8324SM-C-187606 INTERCHANGEABLE
Transformer,power
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-01-022-045918-76-1 INTERCHANGEABLE
Reactor
General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations
4420-01-105-917818761 INTERCHANGEABLE
Heat Exchanger Assy
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
5950-01-123-1477986277-1B INTERCHANGEABLE
Reactor
Raytheon Company Dba Raytheon
5340-01-434-006718761 INTERCHANGEABLE
Standoff,threaded,spacing
Basler Electric Co
7510-01-495-068418761CB INTERCHANGEABLE
Binder,loose-Leaf
Cardinal Brands Inc Div Cardinal Custom Solutions
7690-01-518-8646BPTL-20-428 INTERCHANGEABLE
Label
Brady United States
Cross-Reference Index
Part NumberManufacturer
18761 PRIMARY Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc (USA)
Related Parts
1560-00-104-7404INTERCHANGEABLE
DIFFUSER BLOCK
421579
5950-00-523-8324INTERCHANGEABLE
TRANSFORMER,POWER
SM-C-187606
5950-01-022-0459INTERCHANGEABLE
REACTOR
18-76-1
4420-01-105-9178INTERCHANGEABLE
HEAT EXCHANGER ASSY
18761
5950-01-123-1477INTERCHANGEABLE
REACTOR
986277-1B
5340-01-434-0067INTERCHANGEABLE
STANDOFF,THREADED,SPACING
18761
7510-01-495-0684INTERCHANGEABLE
BINDER,LOOSE-LEAF
18761CB
7690-01-518-8646INTERCHANGEABLE
LABEL
BPTL-20-428

Frequently Asked Questions

What is NSN 1005-01-691-9055?

NSN 1005-01-691-9055 is a Bolt,breech, 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 1005-01-691-9055?

NSN 1005-01-691-9055 has 1 cross-referenced part number: 18761 (Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc).

What NSN replaces 1005-01-691-9055?

There are 8 known substitutes for 1005-01-691-9055: 1560-00-104-7404, 5950-00-523-8324, 5950-01-022-0459 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18761?

Key specifications for 18761: Special Features: BOLT TUBE ASSEMBLY, MK22. COMPRISED THE MK22 BOLT BODY WITH FIRING PIN. BOLT BODY IS STANDARD INTERFACE FOR ALL CALIBERS USED WITH THE MK22. NHA MK22 MOD 0, NSN 1005-01-680-5221.; Part Name Assigned by Controlling Agency: BOLT WITH FIRING PIN MK22. 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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