The Valve,gate, cataloged under National Stock Number 4820-01-443-8198, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Westwater Supply Corp. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-443-8198 |
| Primary Part Number | B-132 1.250 IN |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Westwater Supply Corp |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDWHEEL |
| Inlet Relationship with Outlet | IDENTICAL |
| Stem Type | RISING |
| Connection Type | THREADED INTERNAL PIPE |
| Material Document and Classification | ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE DISK |
| Material Document and Classification | ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM B371 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | ASTM A268, TYPE 410 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Valve Size | 1.250 INCHES IN |
| Features Provided | BONNET PACKING |
| Bonnet Type | INSIDE SCREW |
| Nominal Thread Size | 1.250 INCHES IN |
| Bonnet Attachment Method | UNION |
| Pressure Class | ERR-060 |
| Material | COPPER ALLOY 922 DISK |
| Material | COPPER ALLOY 694 STEM |
| Material | COPPER ALLOY 922 BODY |
| Material | STEEL COMP 410 SEAT |
| Thread Series Designator | NPT |
| 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 |
|---|---|
| B-132 1.250 IN | Westwater Supply Corp (USA) |
| Reference | Meaning |
|---|---|
| B-132 1-1/4IN | 3/2 Design control — primary reference U.S. Government activity |
| B-132 1.250 IN | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-443-8198 is a Valve,gate, manufactured by Westwater Supply Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-443-8198 has 1 manufacturer part number on file: B-132 1.250 IN (Westwater Supply Corp).
Key specifications for B-132 1.250 IN: Furnished Items and Quantity: 1 HANDWHEEL; Inlet Relationship with Outlet: IDENTICAL; Stem Type: RISING; Connection Type: THREADED INTERNAL PIPE. 20 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.