The Valve,gate, cataloged under National Stock Number 4820-01-508-6255, 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 22 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. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-508-6255 |
| Primary Part Number | LPD0002 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | William E Williams Valve Corp |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDWHEEL |
| Inlet Relationship with Outlet | IDENTICAL |
| Flange Face Design | RAISED |
| Stem Type | RISING |
| Connection Type | FLANGE, ROUND W/HOLES |
| Material Document and Classification | ASTM A276 COMP 316 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | ASTM A351 CF8 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM A351 CF8 WITH HARD FACE ASSN STD SINGLE MATERIAL RESPONSE DISK |
| Material Document and Classification | CF3 304 HARD FACE OVERLAY MFR REF SINGLE MATERIAL RESPONSE SEAT |
| Valve Size | 3.000 INCHES IN |
| Features Provided | BONNET PACKING |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Bolt Hole Quantity | 12 |
| Flange Diameter | 7.500 INCHES IN |
| Bonnet Attachment Method | BOLTED |
| Face to Face Distance | 8.000 INCHES IN |
| Pressure Class | ERR-060 |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | STEEL COMP 316 STEM |
| Material | STEEL UNS J92600 BODY |
| Material | STEEL UNS J92600 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 |
|---|---|
| LPD0002 PRIMARY | William E Williams Valve Corp (USA) |
NSN 4820-01-508-6255 is a Valve,gate, manufactured by William E Williams Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-508-6255 has 1 manufacturer part number on file: LPD0002 (William E Williams Valve Corp).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-508-6264, 4820-01-508-6406, 4820-01-508-6415. Verify interchangeability with system specifications before substitution.
Key specifications for LPD0002: Furnished Items and Quantity: 1 HANDWHEEL; Overall Height: 21.120 INCHES NOMINAL IN; Inlet Relationship with Outlet: IDENTICAL; Flange Face Design: RAISED. 22 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.