The Seat,valve, cataloged under National Stock Number 4820-01-152-9208, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydrasearch Company, Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-152-9208 |
| Primary Part Number | 042663DC |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hydrasearch Company, Llc |
| Status | ACTIVE |
| Material | NICKEL ALLOY 400 OVERALL |
| 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 |
|---|---|
| 042663DC PRIMARY | Hydrasearch Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 042661DC | C/1 Advisory reference — outside the item-of-supply concept Hydrasearch Co., Inc. Dba Use CAGE Code 32142 for Cataloging |
NSN 4820-01-152-9208 is a Seat,valve, manufactured by Hydrasearch Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-152-9208 has 1 manufacturer part number on file: 042663DC (Hydrasearch Company, Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-178-9681. Verify interchangeability with system specifications before substitution.
Key specifications for 042663DC: Material: NICKEL ALLOY 400 OVERALL. 1 specification is 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.