The Seat,valve, cataloged under National Stock Number 4820-01-483-5147, 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 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-483-5147 |
| Primary Part Number | 9015-004-002 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Velan Valve Corp. |
| Status | ACTIVE |
| Body Outside Diameter | 3.929 INCHES MINIMUM AND 3.932 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A105 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A216 GR WCB ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 3.0625 INCHES NOMINAL IN |
| Material | STEEL OR STEEL UNS J03002 OVERALL |
| Seat Angle in Deg | 60.000 NOMINAL |
| Seating Surface Shape | ANGULAR |
| 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 |
|---|---|
| 9015-004-002 PRIMARY | Velan Valve Corp. (USA) |
| 88326 PIECE 02D 4INCH | Velan Valve Corp. (USA) |
| Reference | Meaning |
|---|---|
| 88326 | D/9 Drawing number reference only Velan Valve Corp. |
NSN 4820-01-483-5147 is a Seat,valve, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-483-5147 has 2 manufacturer part numbers on file: 9015-004-002 (Velan Valve Corp.), 88326 PIECE 02D 4INCH (Velan Valve Corp.).
Key specifications for 9015-004-002: Body Outside Diameter: 3.929 INCHES MINIMUM AND 3.932 INCHES MAXIMUM IN; Material Document and Classification: ASTM A105 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A216 GR WCB ASSN STD 2ND MATERIAL RESPONSE OVERALL; Body Inside Diameter: 3.0625 INCHES NOMINAL IN; Special Features: NHA 4-INCH PRESSURE SEAL GATE VALVE. 6 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.