The Valve,safety Relief, cataloged under National Stock Number 4820-01-210-0257, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cross Mfg Co Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Cross Mfg Co Inc (CAGE 11341); Link-Belt Cranes, L.p., Lllp (CAGE 2Y614) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-210-0257 |
| Primary Part Number | 1R001710200 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cross Mfg Co Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 1R001710200 PRIMARY | Cross Mfg Co Inc (USA) |
| 3J5987 | Link-Belt Cranes, L.p., Lllp (USA) |
| Reference | Meaning |
|---|---|
| 1R0017 | 5/9 Secondary reference Cross Mfg Co Inc |
NSN 4820-01-210-0257 is a Valve,safety Relief, manufactured by Cross Mfg Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-210-0257 has 2 manufacturer part numbers on file: 1R001710200 (Cross Mfg Co Inc), 3J5987 (Link-Belt Cranes, L.p., Lllp).
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.