The Chamber,environmental Testing, cataloged under National Stock Number 6636-01-667-9309, is classified within Federal Supply Class 6636 (Environmental Chambers and Related Equipment) of the Instruments and Laboratory Equipment group. The manufacturer of record is Airgas Usa, Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Chamber,environmental Testing |
| FSC / FSG | 6636 — Environmental Chambers and Related Equipment (FSG 66) |
| Manufacturers | Airgas Usa, Llc (CAGE 3WRY5) |
| Parameter | Value |
|---|---|
| NSN | 6636-01-667-9309 |
| Primary Part Number | MIL246620 |
| Item Name | Chamber,environmental Testing |
| FSC / FSG | 6636 / 66 — Environmental Chambers and Related Equipment |
| Manufacturer | Airgas Usa, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MIL246620 | Airgas Usa, Llc (USA) |
| Reference | Meaning |
|---|---|
| 246620 | 3/9 Design control — primary reference Miller Electric Mfg. Co. |
NSN 6636-01-667-9309 is a Chamber,environmental Testing, manufactured by Airgas Usa, Llc, classified under FSC 6636, Environmental Chambers and Related Equipment. Status: active.
NSN 6636-01-667-9309 has 1 manufacturer part number on file: MIL246620 (Airgas Usa, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5180-01-692-1458. 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.