The Valve,check, cataloged under National Stock Number 4820-01-433-4867, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Woodward, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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 | 4820-01-433-4867 |
| Primary Part Number | 30388 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Woodward, Inc. |
| Status | ACTIVE |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 8530-979PR 03039-103 | Woodward, Inc. (USA) |
| 30388 PRIMARY | Woodward, Inc. (USA) |
NSN 4820-01-433-4867 is a Valve,check, manufactured by Woodward, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-433-4867 has 2 manufacturer part numbers on file: 8530-979PR 03039-103 (Woodward, Inc.), 30388 (Woodward, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-669-8219. Verify interchangeability with system specifications before substitution.
Key specifications for 30388: End Item Identification: GOVERNOR MODEL UG 40 (P/N 8530-979PR) U/O THE STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Valve Operation Method: AUTOMATIC. 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.