The Housing,fire Control Instrument, cataloged under National Stock Number 1240-01-054-5585, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1240-01-054-5585 |
| Primary Part Number | 12266537 |
| Item Name | Housing,fire Control Instrument |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY SAND CASTING: 14.326 IN. OVERALL LG; 10.524 IN. OVERALL W; 4.356 IN. OVERALL THICK; ITEM CONTAINS 1 GASKET,2 DOWEL PINS,12 INSERTS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12266537 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 6695-513 | 5/9 Secondary reference Recon/optical, Inc. |
NSN 1240-01-054-5585 is a Housing,fire Control Instrument, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-054-5585 has 1 manufacturer part number on file: 12266537 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12266537: General Characteristics Item Description: ALUMINUM ALLOY SAND CASTING: 14.326 IN. OVERALL LG; 10.524 IN. OVERALL W; 4.356 IN. OVERALL THICK; ITEM CONTAINS 1 GASKET,2 DOWEL PINS,12 INSERTS IN; End Item Identification: M901 VEHICLE FAMILY. 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.
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.