The Calibration Check Kit,gas Monito, cataloged under National Stock Number 6665-01-485-6957, is classified within Federal Supply Class 6665 (Hazard-detecting Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Major Safety Service, Inc. Dba Major Safety Service Inc. The record lists 1 manufacturer part number 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 | 6665-01-485-6957 |
| Primary Part Number | 81-6202 |
| Item Name | Calibration Check Kit,gas Monito |
| FSC / FSG | 6665 / 66 — Hazard-detecting Instruments and Apparatus |
| Manufacturer | Major Safety Service, Inc. Dba Major Safety Service Inc |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 81-6202 PRIMARY | Major Safety Service, Inc. Dba Major Safety Service Inc (USA) |
NSN 6665-01-485-6957 is a Calibration Check Kit,gas Monito, manufactured by Major Safety Service, Inc. Dba Major Safety Service Inc, classified under FSC 6665, Hazard-detecting Instruments and Apparatus. Status: active.
NSN 6665-01-485-6957 has 1 manufacturer part number on file: 81-6202 (Major Safety Service, Inc. Dba Major Safety Service Inc).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-518-7710. Verify interchangeability with system specifications before substitution.
Key specifications for 81-6202: Part Name Assigned by Controlling Agency: CALIBRATION KIT (HEXANE), GT 202. 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 6665-01-485-6957 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.