The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-500-2453, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-500-2453 |
| Primary Part Number | 924092 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Temp Rating | 400.0 FAHRENHEIT AND -100.0 FAHRENHEIT DEGF |
| First End Style Designator | FLARED |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 303 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 30303 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Opening Pressure Setting | ERR-060 |
| Temp Adjustability | NOT ADJUSTABLE |
| Material | STEEL COMP 303 BODY |
| 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 |
|---|---|
| 924092 | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| 577T4D1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-500-2453 is a Valve,relief,pressure and Temper, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-500-2453 has 1 manufacturer part number on file: 924092 (L3 Technologies, Inc. Div L3 Keo).
Key specifications for 924092: Flow Control Device: POPPET; Temp Rating: 400.0 FAHRENHEIT AND -100.0 FAHRENHEIT DEGF; First End Style Designator: FLARED; Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 303 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 30303 ASSN STD SINGLE MATERIAL RESPONSE BODY. 7 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.