The Valve,butterfly, cataloged under National Stock Number 4810-01-537-5711, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Betts Industries, Inc.. Government technical data includes 16 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 | 4810-01-537-5711 |
| Primary Part Number | WD319ALB129 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Betts Industries, Inc. |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Bolt Circle Nominal Diameter | 4.875 INCHES ALL ENDS IN |
| Minimum Operating Temp | -40.0 FAHRENHEIT DEGF |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Bolt Hole Nominal Diameter | 0.438 INCHES ALL ENDS IN |
| Valve Size | 3.000 INCHES IN |
| Maximum Operating Temp | 200.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Outside Diameter | 5.625 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 8 ALL ENDS |
| Media for Which Designed | AIR SECOND RESPONSE |
| Media for Which Designed | LIQUID FIRST RESPONSE |
| Material | ALUMINUM BODY |
| Valve Operation Method | AIR |
| Nominal Thickness | 1.125 INCHES ALL ENDS IN |
| 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 |
|---|---|
| WD319ALB129 PRIMARY | Betts Industries, Inc. (USA) |
NSN 4810-01-537-5711 is a Valve,butterfly, manufactured by Betts Industries, Inc., classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-537-5711 has 1 manufacturer part number on file: WD319ALB129 (Betts Industries, Inc.).
Key specifications for WD319ALB129: Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Bolt Circle Nominal Diameter: 4.875 INCHES ALL ENDS IN; Minimum Operating Temp: -40.0 FAHRENHEIT DEGF. 16 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.