The Valve,safety Relief, cataloged under National Stock Number 4820-00-021-3028, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bae Systems Land & Armaments L.p.. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-021-3028 |
| Primary Part Number | NAV0RDLD625537 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bae Systems Land & Armaments L.p. |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 SWITCH |
| Style Designator | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
| Mounting Facility | BRACKET(S) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| NAV0RDLD625537 PRIMARY | Bae Systems Land & Armaments L.p. (USA) |
| 2481393 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| LD625537 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 4820-00-021-3028 is a Valve,safety Relief, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-021-3028 has 3 manufacturer part numbers on file: NAV0RDLD625537 (Bae Systems Land & Armaments L.p.), 2481393 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), LD625537 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for NAV0RDLD625537: Furnished Items and Quantity: 1 SWITCH; Style Designator: STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.; Mounting Facility: BRACKET(S). 3 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.