The Valve,gate, cataloged under National Stock Number 4820-01-261-0154, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Inc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-261-0154 |
| Primary Part Number | B-45835 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Flowserve Inc |
| Status | ACTIVE |
| Inlet Relationship with Outlet | IDENTICAL |
| Maximum Operating Temp and Media for Which Designed | 100.0 FAHRENHEIT WATER-OIL-GAS DEGF |
| Operating Pressure and Type | 3705.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Stem Type | RISING |
| Connection Type | THREADED INTERNAL PIPE |
| Valve Size | 1.000 INCHES IN |
| Features Provided | BONNET PACKING |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Nominal Thread Size | 1.000 INCHES IN |
| Bonnet Attachment Method | BOLTED |
| Pressure Class | ERR-060 |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | STEEL CORROSION RESISTING BODY |
| Material | STEEL CORROSION RESISTING STEM |
| Material | STEEL CORROSION RESISTING DISK |
| 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-45835 PRIMARY | Flowserve Inc (USA) |
| 15801 MM SZ 1 IN PRIMARY | Flowserve Inc (USA) |
| 15801-MM | Flowserve Inc (USA) |
| Reference | Meaning |
|---|---|
| 15801 1IN. | C/1 Advisory reference — outside the item-of-supply concept Flowserve Inc |
NSN 4820-01-261-0154 is a Valve,gate, manufactured by Flowserve Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-261-0154 has 3 manufacturer part numbers on file: B-45835 (Flowserve Inc), 15801 MM SZ 1 IN (Flowserve Inc), 15801-MM (Flowserve Inc).
Key specifications for B-45835: Inlet Relationship with Outlet: IDENTICAL; Maximum Operating Temp and Media for Which Designed: 100.0 FAHRENHEIT WATER-OIL-GAS DEGF; Operating Pressure and Type: 3705.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS; Stem Type: RISING. 17 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.