The Valve,check, cataloged under National Stock Number 4820-01-522-6164, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Velan Valve Corp.. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-522-6164 |
| Primary Part Number | F12-0114C-02TY |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Velan Valve Corp. |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Bolt Circle Nominal Diameter | 7.500 INCHES FIRST END IN |
| Mounting Position | HORIZONTAL |
| Connection Type | FLANGE FIRST END |
| Style Designator | ANGLE |
| Bolt Hole Nominal Diameter | 0.750 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 9.000 INCHES FIRST END IN |
| Nominal Outside Diameter | 4.000 INCHES FIRST END IN |
| Disk Loading Method | WEIGHT |
| Bolt Hole Quantity | 8 FIRST END |
| Material | STEEL UNS J91150 FLOW CONTROL DEVICE |
| Material | STEEL UNS K03504 BODY |
| Material | COBALT COMP 6 SEAT |
| Valve Operation Method | AUTOMATIC |
| Nominal Thickness | 0.688 INCHES FIRST END IN |
| 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 |
|---|---|
| 73811-13 ASSY F12-0114C-02TY | Velan Valve Corp. (USA) |
| F12-0114C-02TY PRIMARY | Velan Valve Corp. (USA) |
| Reference | Meaning |
|---|---|
| 73811-13 | D/9 Drawing number reference only Velan Valve Corp. |
NSN 4820-01-522-6164 is a Valve,check, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-522-6164 has 2 manufacturer part numbers on file: 73811-13 ASSY F12-0114C-02TY (Velan Valve Corp.), F12-0114C-02TY (Velan Valve Corp.).
Key specifications for F12-0114C-02TY: Flange Shape: ROUND WITH HOLES FIRST END; Bolt Circle Nominal Diameter: 7.500 INCHES FIRST END IN; Mounting Position: HORIZONTAL; Connection Type: FLANGE FIRST END. 15 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.