The Valve,angle, cataloged under National Stock Number 4820-00-915-4201, 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 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-915-4201 |
| Primary Part Number | W5-275B-5TS L1 |
| Item Name | Valve,angle |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Velan Valve Corp. |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Renewable Seat Ring Type | WELDED |
| Nominal Pipe Size Accommodated | 1.000 INCHES FIRST END IN |
| Connection Style | SOCKET FIRST END |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Style Designator | ANGLE |
| Operating Pressure | 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Features Provided | BONNET PACKING |
| Bonnet Type | INSIDE SCREW |
| Departure From Cited Designator | QUALITY ASSURANCE TESTING IN ACCORDANCE WITH NAVY LEVEL1 ASSURANCE GUIDE |
| Maximum Operating Temp | 975.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nondefinitive Spec/std Data | B COMPOSITION |
| Bonnet Attachment Method | BOLTED |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Test Data Document | 81349-MIL-V-22094 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.). |
| Material | STEEL BODY |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | COBALT ALLOY SEAT |
| Material | STEEL STEM |
| Material | ASBESTOS PACKING |
| Valve Operation Method | MANUAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| W5-275B-5TS L1 | Velan Valve Corp. (USA) |
| 51510 ITEM 7 | Velan Valve Corp. (USA) |
| Reference | Meaning |
|---|---|
| MILV22094L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| MILV22094 | 4/1 Identification reference U.S. Government activity |
NSN 4820-00-915-4201 is a Valve,angle, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-915-4201 has 2 manufacturer part numbers on file: W5-275B-5TS L1 (Velan Valve Corp.), 51510 ITEM 7 (Velan Valve Corp.).
Key specifications for W5-275B-5TS L1: Flow Control Device: DISK; Renewable Seat Ring Type: WELDED; Nominal Pipe Size Accommodated: 1.000 INCHES FIRST END IN; Connection Style: SOCKET FIRST END. 21 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.
NSN 4820-00-915-4201 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.