The Valve,gate, cataloged under National Stock Number 4820-01-142-7639, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-142-7639 |
| Primary Part Number | 1972SWE 1 1-2IN |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDWHEEL1 HANDWHEEL |
| Inlet Relationship with Outlet | IDENTICALIDENTICAL |
| Nominal Pipe Size Accommodated | 1.500 INCHES1.500 INCHES IN |
| Stem Type | RISINGRISING |
| Connection Type | SOCKET, WELD, PIPESOCKET, WELD, PIPE |
| Valve Size | 1.500 INCHES1.500 INCHES IN |
| Bonnet Type | OUTSIDE SCREW-YOKEOUTSIDE SCREW-YOKE |
| Bonnet Attachment Method | BOLTEDBOLTED |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAT |
| Material | STEEL CORROSION RESISTING STEM |
| Material | STEEL UNS J92900 DISK |
| Material | STEEL UNS J92800 BODY |
| Valve Operation Method | MANUALMANUAL |
| 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 |
|---|---|
| 1972SWE 1 1-2IN PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
NSN 4820-01-142-7639 is a Valve,gate, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-142-7639 has 1 manufacturer part number on file: 1972SWE 1 1-2IN (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
Key specifications for 1972SWE 1 1-2IN: Furnished Items and Quantity: 1 HANDWHEEL1 HANDWHEEL; Inlet Relationship with Outlet: IDENTICALIDENTICAL; Nominal Pipe Size Accommodated: 1.500 INCHES1.500 INCHES IN; Stem Type: RISINGRISING. 13 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.