The Valve,vent, cataloged under National Stock Number 4820-01-390-4836, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-390-4836 |
| Item Name | Valve,vent |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625C, TYPE II, CLASS 1 MIL STD SINGLE TREATMENT RESPONSE |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | 6061-T6 MFR REF SINGLE MATERIAL RESPONSE BODY |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY 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 |
|---|---|
| 969C531-1 | 5/9 Secondary reference U.S. Government activity |
| 2C2722 | 3/2 Design control — primary reference U.S. Government activity |
| 969C531-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 4820-01-390-4836 is a Valve,vent, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-390-4836: Surface Treatment Document and Classification: MIL-A-8625C, TYPE II, CLASS 1 MIL STD SINGLE TREATMENT RESPONSE; Style Designator: STRAIGHT THRU; Material Document and Classification: 6061-T6 MFR REF SINGLE MATERIAL RESPONSE BODY; Special Features: ADD'L MATERIAL: O-RING, MIL-R-83248/1 (VITON COMPOUND); SPRING, STEEL COMP, 17-7PH; VALVE MUST OPEN AT 5 TO 9 PSI; ALL COMPONENTS COMPATIBLE WITH MIL-L-7808 OIL (LUBRICATING OIL, ACFT TURBINE OIL, SYNTHETIC BASE) AT MINUS 65 DEG F TO PLUS 260 DEG F; LGTH 0.385 IN. PLUS 0.08 IN. MAX; OUTSIDE DIA 0.339 IN. MIN TO 0.341 IN. MAXADD'L MATERIAL: O-RING, MIL-R-83248/1 (VITON COMPOUND); SPRING, STEEL COMP, 17-7PH; VALVE MUST OPEN AT 5 TO 9 PSI; ALL COMPONENTS COMPATIBLE WITH MIL-L-7808 OIL (LUBRICATING OIL, ACFT TURBINE OIL, SYNTHETIC BASE) AT MINUS 65 DEG F TO PLUS 260 DEG F; LGTH 0.385 IN. PLUS 0.08 IN. MAX; OUTSIDE DIA 0.339 IN. MIN TO 0.341 IN. MAX IN. 5 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.