The Valve,gate, cataloged under National Stock Number 4820-01-540-4290, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Velan Valve Corp.. Government technical data includes 18 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-540-4290 |
| Primary Part Number | B10-2054P-02TSG |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Velan Valve Corp. |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDWHEEL |
| Inlet Relationship with Outlet | NOT IDENTICAL |
| Nominal Pipe Size Accommodated | 3.000 INCHES IN |
| Maximum Operating Temp and Media for Which Designed | 775.0 FAHRENHEIT STEAM DEGF |
| Operating Pressure and Type | 600.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Stem Type | RISING |
| Connection Type | BUTT WELD PIPE AND FLANGE, ROUND W/O HOLES |
| Valve Size | 3.000 INCHES IN |
| Features Provided | BONNET PACKING |
| Specification/standard Data | 81349 - MIL-V-18110 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | D COMPOSITION |
| Test Data Document | 81349-MIL-S-901 FOR MEDIUM WEIGHT GRADE A EQUIPMENT; EQ CLASS I, FIXTURE FIGURE 9-1.-2 & 10-1 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Pressure Class | ERR-060 |
| Material | STEEL DISK |
| Material | STEEL SEAT |
| Material | STEEL UNS K03504 BODY |
| Material | STEEL STEM |
| 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 |
|---|---|
| P023-478940-G01 ITEM 400 | Velan Valve Corp. (USA) |
| B10-2054P-02TSG PRIMARY | Velan Valve Corp. (USA) |
| Reference | Meaning |
|---|---|
| MIL-V-18110E | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-18110 | 4/1 Identification reference U.S. Government activity |
| 8340-15 | D/9 Drawing number reference only Velan Valve Corp. |
NSN 4820-01-540-4290 is a Valve,gate, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-540-4290 has 2 manufacturer part numbers on file: P023-478940-G01 ITEM 400 (Velan Valve Corp.), B10-2054P-02TSG (Velan Valve Corp.).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-540-4353. Verify interchangeability with system specifications before substitution.
Key specifications for B10-2054P-02TSG: Furnished Items and Quantity: 1 HANDWHEEL; Inlet Relationship with Outlet: NOT IDENTICAL; Nominal Pipe Size Accommodated: 3.000 INCHES IN; Maximum Operating Temp and Media for Which Designed: 775.0 FAHRENHEIT STEAM DEGF. 18 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.