PartsTable TECHNICAL DATA SHEET
OCTOBER 2026Technical Data Sheet

12591135Breechblock

Army, United States Department of the Dba Watervliet Arsenal Div Business Development · NSN 1015-01-344-5835 · FSC 1015 · No Item Name Available
Verified by PartsTable
NSN 1015-01-344-5835 — this item is cataloged by the U.S. Government under National Stock Number 1015-01-344-5835. Primary manufacturer part number: 12591135.
Features
  • Breechblock — FSC 1015
  • Model Number: M119A1
  • Operational Direction: HORIZONTAL
  • Breechblock Type: SLIDING WEDGE
  • Size Designation: 105 MILLIMETER MM
  • 1 verified cross-reference
  • Primary manufacturer: Army, United States Department of the Dba Watervliet Arsenal Div Business Development
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Breechblock, cataloged under National Stock Number 1015-01-344-5835, is classified within Federal Supply Class 1015 (No Item Name Available) of the Weapons group. The primary manufacturer of record is Army, United States Department of the Dba Watervliet Arsenal Div Business Development. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System. 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 government interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1015-01-344-5835
Primary Part Number12591135
Item NameBreechblock
FSC / FSG1015 / 10 — No Item Name Available
ManufacturerArmy, United States Department of the Dba Watervliet Arsenal Div Business Development
StatusACTIVE
Model NumberM119A1
Operational DirectionHORIZONTAL
Breechblock TypeSLIDING WEDGE
Size Designation105 MILLIMETER MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
⇄ Verified Substitutes 8
No Item Name Available
1015-00-010-30167363996 SAME_FSC
Hatch Assembly,loaders Excape
No Item Name Available
No Item Name Available
No Item Name Available
No Item Name Available
No Item Name Available
No Item Name Available
Cross-Reference Index
Part NumberManufacturer
12591135 PRIMARY Army, United States Department of the Dba Watervliet Arsenal Div Business Development (USA)
Related Parts
1015-00-007-2130INTERCHANGEABLE
NO ITEM NAME AVAILABLE
1015-00-010-3016INTERCHANGEABLE
HATCH ASSEMBLY,LOADERS EXCAPE
7363996
1015-00-012-4484INTERCHANGEABLE
NO ITEM NAME AVAILABLE
1015-00-014-2592INTERCHANGEABLE
NO ITEM NAME AVAILABLE
1015-00-014-2600INTERCHANGEABLE
NO ITEM NAME AVAILABLE
1015-00-014-2631INTERCHANGEABLE
NO ITEM NAME AVAILABLE
1015-00-014-7073INTERCHANGEABLE
NO ITEM NAME AVAILABLE
1015-00-014-7075INTERCHANGEABLE
NO ITEM NAME AVAILABLE

Frequently Asked Questions

What is NSN 1015-01-344-5835?

NSN 1015-01-344-5835 is a Breechblock, manufactured by Army, United States Department of the Dba Watervliet Arsenal Div Business Development, classified under FSC 1015 (No Item Name Available). Status: active.

What are the part numbers for NSN 1015-01-344-5835?

NSN 1015-01-344-5835 has 1 cross-referenced part number: 12591135 (Army, United States Department of the Dba Watervliet Arsenal Div Business Development).

What NSN replaces 1015-01-344-5835?

There are 8 known substitutes for 1015-01-344-5835: 1015-00-007-2130, 1015-00-010-3016, 1015-00-012-4484 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12591135?

Key specifications for 12591135: Model Number: M119A1; Operational Direction: HORIZONTAL; End Item Identification: M119A1 HOWITZER; Breechblock Type: SLIDING WEDGE. 5 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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