The Filament,combustible Gas Indicat, cataloged under National Stock Number 6665-01-181-3172, is classified within Federal Supply Class 6665 (Hazard-detecting Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. Government technical data includes 4 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6665-01-181-3172 |
| Primary Part Number | 40000013 |
| Item Name | Filament,combustible Gas Indicat |
| FSC / FSG | 6665 / 66 — Hazard-detecting Instruments and Apparatus |
| Manufacturer | Avox Systems Inc Dba Avox Systems Inc |
| Status | ACTIVE |
| Overall Diameter | 0.002 INCHES MINIMUM AND 0.003 INCHES MAXIMUM IN |
| Precious Material | PLATINUM |
| Precious Material and Location | COILED WIRE PLATINUM |
| Material | PLATINUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 6665-01-181-3172 is a Filament,combustible Gas Indicat, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 6665, Hazard-detecting Instruments and Apparatus. Status: active.
NSN 6665-01-181-3172 has 2 manufacturer part numbers on file: 40000013 (Avox Systems Inc Dba Avox Systems Inc), 40000013 (Vallen Safety Supply Co).
Key specifications for 40000013: Overall Diameter: 0.002 INCHES MINIMUM AND 0.003 INCHES MAXIMUM IN; Precious Material: PLATINUM; Overall Length: 0.688 INCHES NOMINAL IN; Special Features: EACH END OF WIRE CONNECTED TO A BRASS TERMINAL WHICH IS MOUNTED IN A FIBER FILAMENT BASE; EACH FILAMENT ACCURATELY BALANCED AND INTERCHANGEABLE; SUITABLE FOR USE AS COMPARISON OR ANALYZING FILAMENTS; FOR USE WITH PROTABLE GAS COMBUSTIBLE INDICATOR, 6665-00-542-1442. 4 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.
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.