The Valve,vent, cataloged under National Stock Number 4820-01-346-3155, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-346-3155 |
| Item Name | Valve,vent |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| 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 |
|---|---|
| 3094737-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-346-3155 is a Valve,vent, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-346-3155: Special Features: OPERATING FLUID TEMPERATURE WILL BE MINUS 65 DEG F TO PLUS 360 DEG F AND SOAK BACK TEMPERATURES TO PLUS 400 DEG F; OPERATING FLUID WILL CONTAIN OIL CONFORMING TO MIL-L-7808 OR MIL-L- 23699,IN AN AIR/OIL MIST; UPSTREAM PORT END 4.249 IN. MIN TO 4.251 IN. MAX; OTHER END OUTSIDE DIAMETER 2.750 IN. IN; End Item Identification: PACER DAWN. 0 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.