The Seat,valve, cataloged under National Stock Number 4820-01-464-1669, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Caltam, Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 4820-01-464-1669 |
| Primary Part Number | 12278 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Caltam, Inc |
| Status | ACTIVE |
| Material | RUBBER OVERALL |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| 12278 PRIMARY | Caltam, Inc (USA) |
NSN 4820-01-464-1669 is a Seat,valve, manufactured by Caltam, Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-464-1669 has 1 manufacturer part number on file: 12278 (Caltam, Inc).
1 possible match (shared part number, not a government interchangeability claim): 3770-01-576-2629. Verify interchangeability with system specifications before substitution.
Key specifications for 12278: Special Features: NEXT HIGHER ASSY VALVE RED; MATERIAL IS HYCAR; End Item Identification: W/S CODE USNS HENRY KAISER CLASS TAO; Material: RUBBER OVERALL; Seating Surface Shape: FLAT. 2 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.