The Heater, cataloged under National Stock Number 6635-01-071-0022, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Heater |
| FSC / FSG | 6635 — Physical Properties Testing and Inspection (FSG 66) |
| Parameter | Value |
|---|---|
| NSN | 6635-01-071-0022 |
| Item Name | Heater |
| FSC / FSG | 6635 / 66 — Physical Properties Testing and Inspection |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Reference | Meaning |
|---|---|
| 60885 | 3/9 Design control — primary reference Bar-Ray Products, Inc. |
NSN 6635-01-071-0022 is a Heater, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5905-01-291-7663. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). 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.