The Valve,vent, cataloged under National Stock Number 4820-01-493-7650, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-493-7650 |
| Primary Part Number | 21805-35 |
| Item Name | Valve,vent |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 2.000 INCHES ALL ENDS IN |
| Style Designator | STRAIGHT THRU |
| 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 |
|---|---|
| 21805-35 PRIMARY | Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit (USA) |
| Reference | Meaning |
|---|---|
| 21085-35 | 5/1 Secondary reference Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations |
NSN 4820-01-493-7650 is a Valve,vent, manufactured by Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-493-7650 has 1 manufacturer part number on file: 21805-35 (Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit).
Key specifications for 21805-35: Nominal Pipe Size Accommodated: 2.000 INCHES ALL ENDS IN; Style Designator: STRAIGHT THRU; Special Features: BREAKAWAY TYPE,FOR FUEL,LENGTH 5.370. 2 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.