The Ring,locking Special, cataloged under National Stock Number 6665-01-382-8038, is classified within Federal Supply Class 6665 (Hazard-detecting Instruments and Apparatus) of the Instruments and Laboratory Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6665-01-382-8038 |
| Item Name | Ring,locking Special |
| FSC / FSG | 6665 / 66 — Hazard-detecting Instruments and Apparatus |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 442-521 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6665-01-382-8038 is a Ring,locking Special, classified under FSC 6665, Hazard-detecting Instruments and Apparatus. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5920-01-477-5037. Verify interchangeability with system specifications before substitution.
Key specifications for 6665-01-382-8038: End Item Identification: 6665-01-199-4153. 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 6665-01-382-8038 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.