The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-249-1722, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-249-1722 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| First End Thread Direction | RIGHT-HAND |
| Body Style | SINGLE CONNECTION STRAIGHT THRU |
| First End Connection Type | THREADED EXTERNAL PIPE |
| Material | STEEL 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 |
|---|---|
| GS41W294-1 | 7/2 Vendor item drawing reference Hamilton Sundstrand Corporation Dba Collins Aerospace |
| ECD18 | 3/9 Design control — primary reference Crouse-Hinds Co |
NSN 4820-01-249-1722 is a Valve,relief,pressure and Temper, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-249-1722: First End Thread Direction: RIGHT-HAND; Body Style: SINGLE CONNECTION STRAIGHT THRU; First End Connection Type: THREADED EXTERNAL PIPE; Special Features: USED TO DRAIN WATER AND ALLOW VENTILATION IN ELECTRICAL ENCLOSURE FOR M-X ICBM. 4 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.