The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-697-9708, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Leser & Associates. Government technical data includes 19 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 | 4820-01-697-9708 |
| Primary Part Number | 4594.2172-268 PSI G |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Leser & Associates |
| Status | ACTIVE |
| Flow Control Device | PISTON, SPRING LOADED |
| Temp Rating | 100.0 CELSIUS DEGC |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS |
| First End Style Designator | FLARE |
| First Connection Face to Centerline Distance | 100.0 MILLIMETERS NOMINAL MM |
| End Connection Quantity | 2 |
| Second Connection Face to Centerline Distance | 100.0 MILLIMETERS NOMINAL MM |
| Second End Style Designator | FLARE |
| Second End Flange Shape Style | ROUND W/O BOLT HOLES |
| Second End Recess Diameter | 13.0 MILLIMETERS NOMINAL MM |
| Opening Pressure Setting | ERR-060 |
| Temp Adjustability | NOT ADJUSTABLE |
| First End Flange Shape Style | ROUND W/O BOLT HOLES |
| Material | STEEL COMP 316 BODY |
| Material | STEEL COMP 316 OVERALL |
| Media for Which Designed | OIL |
| Second End Connection Type | UNTHREADED INTERNAL PIPE |
| Valve Discharge Flow Rate | 15233.832 KILOGRAMS PER HOUR KG |
| 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 |
|---|---|
| 4594.2172-268 PSI G PRIMARY | Leser & Associates (USA) |
NSN 4820-01-697-9708 is a Valve,relief,pressure and Temper, manufactured by Leser & Associates, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-697-9708 has 1 manufacturer part number on file: 4594.2172-268 PSI G (Leser & Associates).
Key specifications for 4594.2172-268 PSI G: Flow Control Device: PISTON, SPRING LOADED; Temp Rating: 100.0 CELSIUS DEGC; Second End Relationship with First End: NOT IDENTICAL; Body Style: ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS. 19 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.