The Detector,gas, cataloged under National Stock Number 6665-01-623-7408, is classified within Federal Supply Class 6665 (Hazard-detecting Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Sperian Protection Instrumentation, Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Detector,gas |
| FSC / FSG | 6665 — Hazard-detecting Instruments and Apparatus (FSG 66) |
| Manufacturers | Sperian Protection Instrumentation, Llc (CAGE 4WFC9); Biosystems Inc Div Sperian Protection Americas Inc. (CAGE 62170) |
| Parameter | Value |
|---|---|
| NSN | 6665-01-623-7408 |
| Primary Part Number | 54-53-A01025080N |
| Item Name | Detector,gas |
| FSC / FSG | 6665 / 66 — Hazard-detecting Instruments and Apparatus |
| Manufacturer | Sperian Protection Instrumentation, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 54-53-A01025080N PRIMARY | Sperian Protection Instrumentation, Llc (USA) |
| 54-53A01025080N | Biosystems Inc Div Sperian Protection Americas Inc. (USA) |
| Reference | Meaning |
|---|---|
| B673-8132-F46 | 5/1 Secondary reference U.S. Government activity |
| 218087016 | 5/2 Secondary reference U.S. Government activity |
| 512-7551081-F46 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
NSN 6665-01-623-7408 is a Detector,gas, manufactured by Sperian Protection Instrumentation, Llc, classified under FSC 6665, Hazard-detecting Instruments and Apparatus. Status: active.
NSN 6665-01-623-7408 has 2 manufacturer part numbers on file: 54-53-A01025080N (Sperian Protection Instrumentation, Llc), 54-53A01025080N (Biosystems Inc Div Sperian Protection Americas Inc.).
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
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.