The Valve,safety Relief, cataloged under National Stock Number 4820-01-441-5248, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mirada Research & Manufacturing, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-441-5248 |
| Primary Part Number | B-51019-6 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Mirada Research & Manufacturing, 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 |
|---|---|
| B-51019-6 | Palfinger Marine Usa, Llc (USA) |
| B-51019-6 PRIMARY | Mirada Research & Manufacturing, Inc. (USA) |
| B-51019-6 | Zodiac Hurricane Technologies Inc (CAN) |
| 534ST-3A ITEM 106 | Naval Sea Systems Command (USA) |
NSN 4820-01-441-5248 is a Valve,safety Relief, manufactured by Mirada Research & Manufacturing, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-441-5248 has 4 manufacturer part numbers on file: B-51019-6 (Palfinger Marine Usa, Llc), B-51019-6 (Mirada Research & Manufacturing, Inc.), B-51019-6 (Zodiac Hurricane Technologies Inc), 534ST-3A ITEM 106 (Naval Sea Systems Command).
Key specifications for B-51019-6: Special Features: USED ON RESCUE BOAT; End Item Identification: 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.