The Valve,check, cataloged under National Stock Number 4820-01-377-3159, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Golden State Hydraulics. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-377-3159 |
| Primary Part Number | A0903020 ITEM D2A25 1.0 N |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Golden State Hydraulics |
| 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 |
|---|---|
| A0903020 ITEM D2A25 1.0 N PRIMARY | Golden State Hydraulics (USA) |
| Reference | Meaning |
|---|---|
| D2A25 1.0 N | C/1 Advisory reference — outside the item-of-supply concept Parker Hannifin Manufacturing Limited, Hydraulic Cartridge Systems Division - Europe |
| A0903020 | D/9 Drawing number reference only Golden State Hydraulics |
NSN 4820-01-377-3159 is a Valve,check, manufactured by Golden State Hydraulics, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-377-3159 has 1 manufacturer part number on file: A0903020 ITEM D2A25 1.0 N (Golden State Hydraulics).
Key specifications for A0903020 ITEM D2A25 1.0 N: End Item Identification: MANIFOLD ASSE;GOLDEN STATE HYDRAULICS. 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.