The Seat,valve, cataloged under National Stock Number 4820-01-481-8698, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydraulics International, Inc. Dba Hydraulics International 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Seat,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Hydraulics International, Inc. Dba Hydraulics International Inc (CAGE 56529) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-481-8698 |
| Primary Part Number | 22448-2 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hydraulics International, Inc. Dba Hydraulics International 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 |
|---|---|
| 22448-2 PRIMARY | Hydraulics International, Inc. Dba Hydraulics International Inc (USA) |
| Reference | Meaning |
|---|---|
| 4820PL0873247 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 22448 | D/9 Drawing number reference only Hydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging |
| 4820PL1627031 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 4820-01-481-8698 is a Seat,valve, manufactured by Hydraulics International, Inc. Dba Hydraulics International Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-481-8698 has 1 manufacturer part number on file: 22448-2 (Hydraulics International, Inc. Dba Hydraulics International Inc).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-573-9455. 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.