The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-269-2791, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ross Operating Valve Co. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-269-2791 |
| Primary Part Number | 2753A5001 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ross Operating Valve Co |
| Status | ACTIVE |
| Temp Rating | 175.0 CELSIUS DEGC |
| End Connection Quantity | 2 |
| Temp Control Device Type | THERMOSTATIC |
| Temp Adjustability | NOT ADJUSTABLE |
| Media for Which Designed | WATER, SALT |
| 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 |
|---|---|
| 2753A5001 PRIMARY | Ross Operating Valve Co (USA) |
| Reference | Meaning |
|---|---|
| 422593-1 | 7/2 Vendor item drawing reference U.S. Government activity |
| 2756A5001 | C/1 Advisory reference — outside the item-of-supply concept Ross Operating Valve Co |
NSN 4820-01-269-2791 is a Valve,relief,pressure and Temper, manufactured by Ross Operating Valve Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-269-2791 has 1 manufacturer part number on file: 2753A5001 (Ross Operating Valve Co).
Key specifications for 2753A5001: Temp Rating: 175.0 CELSIUS DEGC; End Connection Quantity: 2; Temp Control Device Type: THERMOSTATIC; Temp Adjustability: NOT ADJUSTABLE. 5 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.