The Housing,lock,gun Mount, cataloged under National Stock Number 1015-01-312-2731, is classified within Federal Supply Class 1015 (Guns, 75mm Through 125mm) of the Weapons group. The manufacturer of record is Bae Systems Land & Armaments L.p.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1015-01-312-2731 |
| Primary Part Number | 31W-0021 |
| Item Name | Housing,lock,gun Mount |
| FSC / FSG | 1015 / 10 — Guns, 75mm Through 125mm |
| Manufacturer | Bae Systems Land & Armaments L.p. |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL PER AISI 1015-1026;7.625 IN.O/A LG;1 END 3.500 IN.SQ,CENTER HOLE 1.625 IN. THRU,4 MTG HOLES THRU SQ SECTION,0.562 IN.DIA,SPACED 2.550 IN.APART BOTH DIRECTIONS;OTHER END EXT THD,2.500-4 ACME THDS 6.000 IN. THD LG,2 SLOTS 180 DEG APART IN THD SECTION,SLOT SIZE 1.062 BY 3.750 IN. STARTING 0.625 IN.FROM END OF ITEM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 31W-0021 | Bae Systems Land & Armaments L.p. (USA) |
| Reference | Meaning |
|---|---|
| 9283316-01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1015-01-312-2731 is a Housing,lock,gun Mount, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 1015, Guns, 75mm Through 125mm. Status: active.
NSN 1015-01-312-2731 has 1 manufacturer part number on file: 31W-0021 (Bae Systems Land & Armaments L.p.).
Key specifications for 31W-0021: General Characteristics Item Description: STEEL PER AISI 1015-1026;7.625 IN.O/A LG;1 END 3.500 IN.SQ,CENTER HOLE 1.625 IN. THRU,4 MTG HOLES THRU SQ SECTION,0.562 IN.DIA,SPACED 2.550 IN.APART BOTH DIRECTIONS;OTHER END EXT THD,2.500-4 ACME THDS 6.000 IN. THD LG,2 SLOTS 180 DEG APART IN THD SECTION,SLOT SIZE 1.062 BY 3.750 IN. STARTING 0.625 IN.FROM END OF ITEM IN; End Item Identification: LOCKHEED AIRCRAFT SERVICE GUN MOUNT,MODEL AC130H. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1015-01-312-2731 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.