The Valve,vent-Check, cataloged under National Stock Number 4820-01-663-9436, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tate Andale, Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-663-9436 |
| Primary Part Number | 040211231D |
| Item Name | Valve,vent-Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tate Andale, Llc |
| Status | ACTIVE |
| Connection Style | SOCKET (PIPE) FIRST END |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Valve Size | 4.00 INCHES IN |
| Nominal Outside Diameter | 7.75 INCHES SECOND END IN |
| Face to Face Distance | 3.63 INCHES IN |
| Material | COPPER ALLOY BODY |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 040211231D PRIMARY | Tate Andale, Llc (USA) |
| Reference | Meaning |
|---|---|
| 3-320-01 P/N 52-40S-4IN 20 MESH | C/1 Advisory reference — outside the item-of-supply concept Tate Andale, Llc |
| 52-40S-4IN 20 MESH | 5/1 Secondary reference Tate Andale, Llc |
NSN 4820-01-663-9436 is a Valve,vent-Check, manufactured by Tate Andale, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-663-9436 has 1 manufacturer part number on file: 040211231D (Tate Andale, Llc).
Key specifications for 040211231D: Connection Style: SOCKET (PIPE) FIRST END; Connection Type: UNTHREADED INTERNAL PIPE FIRST END; Valve Size: 4.00 INCHES IN; Nominal Outside Diameter: 7.75 INCHES SECOND END IN. 7 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.