The Valve,safety Relief, cataloged under National Stock Number 4820-01-282-0135, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Enerpac Ltd. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-282-0135 |
| Primary Part Number | B161.272 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Enerpac Ltd |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| 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 |
|---|---|
| B161.272 | Enerpac Ltd (GBR) |
| B161.272 | Enerpac B.v. (NLD) |
| B161.272 | Enerpac Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| B161.272 | 3/9 Design control — primary reference Enerpac Tool Group Corp |
| 4900136 | 5/9 Secondary reference Gichner Systems Group Inc Gichner Mobilizer Div |
NSN 4820-01-282-0135 is a Valve,safety Relief, manufactured by Enerpac Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-282-0135 has 3 manufacturer part numbers on file: B161.272 (Enerpac Ltd), B161.272 (Enerpac B.v.), B161.272 (Enerpac Gmbh).
Key specifications for B161.272: Flow Control Device: POPPET; Valve Operation Method: AUTOMATIC. 2 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.