The Detector Head, cataloged under National Stock Number 6665-01-415-4953, is classified within Federal Supply Class 6665 (Hazard-detecting Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Msa Safety Sales, Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6665-01-415-4953 |
| Primary Part Number | 1401-05 |
| Item Name | Detector Head |
| FSC / FSG | 6665 / 66 — Hazard-detecting Instruments and Apparatus |
| Manufacturer | Msa Safety Sales, 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 |
|---|---|
| 1401-05 PRIMARY | Msa Safety Sales, Llc (USA) |
| Reference | Meaning |
|---|---|
| 1401-05 | 5/9 Secondary reference Sierra Monitor Corporation |
| N-18003 | 3/9 Design control — primary reference Sierra Monitor Corporation |
| N-18003 | 5/9 Secondary reference Msa Safety Sales, Llc |
| N-18003A2 | 5/9 Secondary reference Sierra Monitor Corporation |
NSN 6665-01-415-4953 is a Detector Head, manufactured by Msa Safety Sales, Llc, classified under FSC 6665, Hazard-detecting Instruments and Apparatus. Status: active.
NSN 6665-01-415-4953 has 1 manufacturer part number on file: 1401-05 (Msa Safety Sales, Llc).
Key specifications for 1401-05: Special Features: DETECTOR HEAD FOR GAS DETECTOR;MODEL 1404-05; End Item Identification: NIMITZ CLASS CVN;GAS DETECTOR. 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.
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.