The Valve,gate, cataloged under National Stock Number 4820-01-628-0308, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William E Williams Valve Corp. Government technical data includes 12 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 | 4820-01-628-0308 |
| Primary Part Number | 11NRSGA120036-1/2IN |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | William E Williams Valve Corp |
| Status | ACTIVE |
| Inlet Relationship with Outlet | IDENTICAL |
| Nominal Pipe Size Accommodated | 0.500 INCHES IN |
| Overall Diameter | 0.59 INCHES NOMINAL IN |
| Stem Type | NONRISING |
| Connection Type | THREADED EXTERNAL PIPE |
| Valve Size | 0.500 INCHES IN |
| Bonnet Type | PACKING RETAINING |
| Bonnet Attachment Method | THREADED |
| Material | STEEL BODY |
| Material | STEEL COMP 316 STEM |
| Material | STEEL COMP 316 DISK |
| Valve Operation Method | MANUAL OR GAS |
| 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 |
|---|---|
| 11NRSGA120036-1/2IN PRIMARY | William E Williams Valve Corp (USA) |
| SN20T6-316-1/2IN | William E Williams Valve Corp (USA) |
NSN 4820-01-628-0308 is a Valve,gate, manufactured by William E Williams Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-628-0308 has 2 manufacturer part numbers on file: 11NRSGA120036-1/2IN (William E Williams Valve Corp), SN20T6-316-1/2IN (William E Williams Valve Corp).
Key specifications for 11NRSGA120036-1/2IN: Overall Height: 3.07 INCHES NOMINAL IN; Inlet Relationship with Outlet: IDENTICAL; Nominal Pipe Size Accommodated: 0.500 INCHES IN; Overall Diameter: 0.59 INCHES NOMINAL IN. 12 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.