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Technical Data Sheet
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12591135 — BREECHBLOCK

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

12591135: BREECHBLOCK.

The BREECHBLOCK is a the manufacturer industrial component. Key specifications include model_number: M119A1, breechblock_type: SLIDING WEDGE, size_designation: 105 MILLIMETER MM, operational_direction: HORIZONTAL, end_item_identification: M119A1 HOWITZER. This part is cataloged in the U.S.

Government catalog under NSN 1015-01-344-5835, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
12591135
NSN: 1015-01-344-5835
FSC: 1015 — Guns, 75mm Through 125mm
CAGE: 19206 — ARMY, UNITED STATES DEPARTMENT OF THE DBA WATERVLIET ARSENAL DIV BUSINESS DEVELOPMENT (USA)
SPECIFICATIONS
model_numberM119A1
breechblock_typeSLIDING WEDGE
size_designation105 MILLIMETER MM
operational_directionHORIZONTAL
end_item_identificationM119A1 HOWITZER
NSN1015-01-344-5835
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BREECHBLOCK TITLE COMPONENT PN 12591135 MFR BREECHBLOCK
KEY FEATURES
•
OPERATIONAL DIRECTION: HORIZONTAL
•
MODEL NUMBER: M119A1
•
BREECHBLOCK TYPE: SLIDING WEDGE
•
SIZE DESIGNATION: 105 MILLIMETER MM
TECHNICAL CHARACTERISTICS
OPERATIONAL DIRECTIONHORIZONTAL
MODEL NUMBERM119A1
BREECHBLOCK TYPESLIDING WEDGE
SIZE DESIGNATION105 MILLIMETER MM
END ITEM IDENTIFICATIONM119A1 HOWITZER
OTHER ITEMS IN FSC 1015 — Guns, 75mm Through 125mm
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1015-00-007-2130 1015-00-010-3016 1015-00-012-4484 1015-00-014-2592 1015-00-014-2600 1015-00-014-2631 1015-00-014-7073 1015-00-014-7075
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementDemilitarization required (F)
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FREQUENTLY ASKED QUESTIONS
What is 12591135?
12591135 is a BREECHBLOCK.
What is the NSN for 12591135?
12591135 is cataloged in the U.S. Government catalog under NSN 1015-01-344-5835. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.