The Valve,vent, cataloged under National Stock Number 4820-01-121-6310, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-121-6310 |
| Item Name | Valve,vent |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Connection Style | BEADED (HOSE) SECOND END |
| Connection Style | BEADED (HOSE) FIRST END |
| Connection Style | DOUBLE BEADED (HOSE) THIRD END |
| Nominal Inside Diameter Hose Accommodated | 0.410 INCHES FIRST END IN |
| Nominal Inside Diameter Hose Accommodated | 0.196 INCHES THIRD END IN |
| Nominal Inside Diameter Hose Accommodated | 0.321 INCHES SECOND END IN |
| Connection Type | UNTHREADED EXTERNAL HOSE SECOND END |
| Connection Type | UNTHREADED EXTERNAL HOSE FIRST END |
| Connection Type | UNTHREADED EXTERNAL HOSE THIRD END |
| Style Designator | CROSS |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | STEEL AND PLASTIC 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 |
|---|---|
| J3236680 | 3/2 Design control — primary reference U.S. Government activity |
| 3236680 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-121-6310 is a Valve,vent, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-121-6310: Connection Style: BEADED (HOSE) SECOND END; Connection Style: BEADED (HOSE) FIRST END; Connection Style: DOUBLE BEADED (HOSE) THIRD END; Nominal Inside Diameter Hose Accommodated: 0.410 INCHES FIRST END IN. 12 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.