The Valve,gate, cataloged under National Stock Number 4820-01-381-4483, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Anvil Products Inc Longview Div. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-381-4483 |
| Primary Part Number | VB4311 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Anvil Products Inc Longview Div |
| Status | ACTIVE |
| Inlet Relationship with Outlet | IDENTICAL |
| Nominal Pipe Size Accommodated | 0.750 INCHES IN |
| Maximum Operating Temp and Media for Which Designed | 900.0 FAHRENHEIT STEAM DEGF |
| Operating Pressure and Type | 2000.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Stem Type | RISING |
| Connection Type | SOCKET, WELD, PIPE |
| Valve Size | 0.750 INCHES IN |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Bonnet Attachment Method | BOLTED |
| Material | STEEL BODY |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | STEEL CORROSION RESISTING STEM |
| Material | STEEL CORROSION RESISTING DISK |
| 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 |
|---|---|
| VB4311 PRIMARY | Anvil Products Inc Longview Div (USA) |
| 821.750IN SW TRIM 1 | Anvil Products Inc Longview Div (USA) |
NSN 4820-01-381-4483 is a Valve,gate, manufactured by Anvil Products Inc Longview Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-381-4483 has 2 manufacturer part numbers on file: VB4311 (Anvil Products Inc Longview Div), 821.750IN SW TRIM 1 (Anvil Products Inc Longview Div).
Key specifications for VB4311: Inlet Relationship with Outlet: IDENTICAL; Nominal Pipe Size Accommodated: 0.750 INCHES IN; Maximum Operating Temp and Media for Which Designed: 900.0 FAHRENHEIT STEAM DEGF; Operating Pressure and Type: 2000.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS. 14 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.