The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-481-9584, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ordnance Technology Service, Inc.. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-481-9584 |
| Primary Part Number | 1330653 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ordnance Technology Service, Inc. |
| Status | ACTIVE |
| FSC Application Data | MARK 46 TORPEDO |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | ANGLE |
| End Connection Quantity | 2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1330653 PRIMARY | Ordnance Technology Service, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 1330653 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 4820-00-481-9584 is a Valve,regulating,fluid Pressure, manufactured by Ordnance Technology Service, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-481-9584 has 1 manufacturer part number on file: 1330653 (Ordnance Technology Service, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6645-01-363-2394. Verify interchangeability with system specifications before substitution.
Key specifications for 1330653: FSC Application Data: MARK 46 TORPEDO; Second End Relationship with First End: NOT IDENTICAL; Body Style: ANGLE; End Connection Quantity: 2. 4 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.
NSN 4820-00-481-9584 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.