The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-286-4342, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-286-4342 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| First End Thread Direction | RIGHT-HAND |
| Temp Rating | -65.0 FAHRENHEIT AND 275.00 FAHRENHEIT DEGF |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | SINGLE CONNECTION STRAIGHT THRU |
| First End Style Designator | SWIVEL NUT, FLARE |
| End Connection Quantity | 1 |
| Temp Control Device Type | THERMOSTATIC |
| First End Connection Type | THREADED INTERNAL PIPE |
| Temp Adjustability | ADJUSTABLE |
| First End Nominal Pipe Size Accommodated | 0.375 INCHES IN |
| Material | ALUMINUM BODY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| D530A-6D-6 | 3/2 Design control — primary reference U.S. Government activity |
| 3201-16258-20-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 4820-01-286-4342 is a Valve,relief,pressure and Temper, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-286-4342: First End Thread Direction: RIGHT-HAND; Temp Rating: -65.0 FAHRENHEIT AND 275.00 FAHRENHEIT DEGF; Second End Relationship with First End: NOT IDENTICAL; Body Style: SINGLE CONNECTION STRAIGHT THRU. 11 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.