The Prism,optical Instrument, cataloged under National Stock Number 6650-01-317-7974, is classified within Federal Supply Class 6650 (Optical Instruments, Test Equipment, Components and Accessories) of the Instruments and Laboratory Equipment group. The manufacturer of record is Lockheed Martin Corp Electronics and Missiles Div. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-01-317-7974 |
| Primary Part Number | 260350 |
| Item Name | Prism,optical Instrument |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Lockheed Martin Corp Electronics and Missiles Div |
| Status | ACTIVE |
| Surface Finish | FINE GROUND AND POLISHED |
| Material | GLASS |
| Angle in Deg | 90.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 6650-01-317-7974 is a Prism,optical Instrument, manufactured by Lockheed Martin Corp Electronics and Missiles Div, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-01-317-7974 has 2 manufacturer part numbers on file: 260350 (Continental Optical Corp), 260350 (Lockheed Martin Corp Electronics and Missiles Div).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-485-3540. Verify interchangeability with system specifications before substitution.
Key specifications for 260350: Overall Height: 0.875 INCHES NOMINAL IN; Surface Finish: FINE GROUND AND POLISHED; Overall Length: 0.931 INCHES NOMINAL IN; End Item Identification: AIRCRAFT MODEL F-18. 3 specifications are 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 6650-01-317-7974 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.