The Valve,gate, cataloged under National Stock Number 4820-01-660-3402, 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 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-660-3402 |
| Primary Part Number | W04-2054B-02TSG |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Velan Valve Corp. |
| Status | ACTIVE |
| Inlet Relationship with Outlet | IDENTICAL |
| Nominal Pipe Size Accommodated | 0.750 INCHES IN |
| Stem Type | RISING |
| Connection Type | SOCKET, WELD, PIPE |
| Material Document and Classification | ASTM A105 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | AMS 5387 NATIONAL STD SINGLE MATERIAL RESPONSE DISK |
| Material Document and Classification | ASTM A106 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | ASTM A276 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A479 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Valve Size | 0.75 INCHES IN |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Bonnet Attachment Method | BOLTED |
| Face to Face Distance | 7.500 INCHES IN |
| Pressure Class | ERR-060 |
| Material | COBALT ALLOY DISK |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | STEEL CORROSION RESISTING BODY |
| Material | STEEL COMP 410 STEM |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| W04-2054B-02TSG PRIMARY | Velan Valve Corp. (USA) |
| Reference | Meaning |
|---|---|
| 23399 REV AB | D/9 Drawing number reference only Velan Valve Corp. |
NSN 4820-01-660-3402 is a Valve,gate, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-660-3402 has 1 manufacturer part number on file: W04-2054B-02TSG (Velan Valve Corp.).
Key specifications for W04-2054B-02TSG: Inlet Relationship with Outlet: IDENTICAL; Nominal Pipe Size Accommodated: 0.750 INCHES IN; Stem Type: RISING; Connection Type: SOCKET, WELD, PIPE. 18 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.