The Valve Assembly, cataloged under National Stock Number 4820-01-161-8985, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Spencer Industries Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-161-8985 |
| Primary Part Number | SM-C-969179-2 |
| Item Name | Valve Assembly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Spencer Industries Inc |
| 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 |
|---|---|
| SM-C-969179-2 | Spencer Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| SM-C-969179 | 5/2 Secondary reference U.S. Government activity |
| 10062482 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| SM-C-969179-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-161-8985 is a Valve Assembly, manufactured by Spencer Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-161-8985 has 1 manufacturer part number on file: SM-C-969179-2 (Spencer Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 3110-01-595-2475. Verify interchangeability with system specifications before substitution.
Key specifications for SM-C-969179-2: End Item Identification: AN/TAS-4B AND AN/TAS-6A A. 0 specifications are documented in the U.S. Government catalog.
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.