The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-581-4617, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Baird Mfg Co. Government technical data includes 22 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-581-4617 |
| Primary Part Number | 761 7601-1-LLP |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Baird Mfg Co |
| Status | ACTIVE |
| Flow Control Device | DISK, CIRCULAR |
| First End Thread Series Designator | NPT |
| Second End Nominal Thread Size | 1.000 INCHES IN |
| Second End Relationship with First End | IDENTICAL |
| Body Style | TEE GIVE "ADQL" AND "ADQM" ONLY WHEN FLANGED ALL ENDS |
| Third End Relationship with Preceding Ends | NOT IDENTICAL WITH FIRST OR SECOND END |
| First End Style Designator | PLAIN |
| Second End Thread Series Designator | NPT |
| Second End Nominal Pipe Size Accommodated | 1.000 INCHES IN |
| Third End Nominal Pipe Size Accommodated | 1.000 INCHES IN |
| End Connection Quantity | 3 |
| Second End Style Designator | PLAIN |
| Third End Thread Series Designator | NPT |
| First End Connection Type | THREADED INTERNAL PIPE |
| Third End Connection Type | THREADED EXTERNAL PIPE |
| First End Nominal Pipe Size Accommodated | 1.000 INCHES IN |
| Material | COBALT ALLOY SEAT |
| Material | ALUMINUM BODY |
| Third End Style Designator | PLAIN |
| Valve Discharge Flow Rate | 600.0 GALLONS PER MINUTE |
| First End Nominal Thread Size | 1.000 INCHES IN |
| Third End Nominal Thread Size | 1.0000 INCHES IN |
| 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 |
|---|---|
| 761 7601-1-LLP PRIMARY | Baird Mfg Co (USA) |
NSN 4820-01-581-4617 is a Valve,relief,pressure and Temper, manufactured by Baird Mfg Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-581-4617 has 1 manufacturer part number on file: 761 7601-1-LLP (Baird Mfg Co).
Key specifications for 761 7601-1-LLP: Flow Control Device: DISK, CIRCULAR; First End Thread Series Designator: NPT; Second End Nominal Thread Size: 1.000 INCHES IN; Second End Relationship with First End: IDENTICAL. 22 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.