The Valve,butterfly, cataloged under National Stock Number 4810-01-483-8022, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Mks Inc.. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-483-8022 |
| Primary Part Number | 253B-1-40-1 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Mks Inc. |
| Status | ACTIVE |
| Flange Shape | ROUND ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Voltage in Volts and Current Type | 15.0 DC |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Valve Size | 1.270 INCHES IN |
| Maximum Operating Temp | 90.0 CELSIUS SINGLE RESPONSE DEGC |
| Nominal Outside Diameter | 2.750 INCHES ALL ENDS IN |
| Mounting Facility | BRACKET(S) |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Valve Operation Method | ELECTRIC MOTOR |
| Nominal Thickness | 2.250 INCHES ALL ENDS IN |
| Current Rating in Amps | 1.000 |
| 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 |
|---|---|
| 253B-1-40-1 PRIMARY | Mks Inc. (USA) |
| 9452972-01 | Drs Network & Imaging Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 9452972-01 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 4810-01-483-8022 is a Valve,butterfly, manufactured by Mks Inc., classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-483-8022 has 2 manufacturer part numbers on file: 253B-1-40-1 (Mks Inc.), 9452972-01 (Drs Network & Imaging Systems, Llc).
Key specifications for 253B-1-40-1: Flange Shape: ROUND ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Voltage in Volts and Current Type: 15.0 DC; Connection Type: FLANGE ALL ENDS. 13 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.