The Mount Subassembly, cataloged under National Stock Number 1240-01-497-8639, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is United States Department of Us Army Peo Stri /simulation,training, Instrumentation/. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-01-497-8639 |
| Primary Part Number | 137560 |
| Item Name | Mount Subassembly |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | United States Department of Us Army Peo Stri /simulation,training, Instrumentation/ |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 137560 PRIMARY | United States Department of Us Army Peo Stri /simulation,training, Instrumentation/ (USA) |
NSN 1240-01-497-8639 is a Mount Subassembly, manufactured by United States Department of Us Army Peo Stri /simulation,training, Instrumentation/, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-497-8639 has 1 manufacturer part number on file: 137560 (United States Department of Us Army Peo Stri /simulation,training, Instrumentation/).
Key specifications for 137560: Criticality Code Justification: FEAT; Special Features: WEAPON SYSTEM ESSENTIAL;TRIANGULAR ALUMINUM PLATE, 10.25 BY 7.42 BY .5 INCH; USED WITH P/N 137603 IN; End Item Identification: 2350-01-420-4716. 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 1240-01-497-8639 has DEMIL Code D. 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.