The Filter,light,optical Instrument, cataloged under National Stock Number 6650-01-338-9172, is classified within Federal Supply Class 6650 (Optical Instruments, Test Equipment, Components and Accessories) of the Instruments and Laboratory Equipment group. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6650-01-338-9172 |
| Item Name | Filter,light,optical Instrument |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 622-960935-000 | 5/9 Secondary reference U.S. Government activity |
| B55M0024 | 7/9 Vendor item drawing reference Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co |
| B55M0024-17 | 3/9 Design control — primary reference Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co |
| 620-960395-000 | 5/2 Secondary reference U.S. Government activity |
NSN 6650-01-338-9172 is a Filter,light,optical Instrument, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6650-01-338-9173. Verify interchangeability with system specifications before substitution.
Key specifications for 6650-01-338-9172: Overall Height: 1.800 INCHES NOMINAL IN; Overall Length: 1.906 INCHES NOMINAL IN. 0 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 6650-01-338-9172 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.