The Valve,butterfly, cataloged under National Stock Number 4820-01-560-1344, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is W & O Supply Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-560-1344 |
| Primary Part Number | 0251LA-291FGF-3MG |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | W & O Supply Inc |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 2.500 INCHES IN |
| Specification/standard Data | 81349-MIL-V-24624 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | B STYLE AND I TYPE |
| Face to Face Distance | 2.090 INCHES IN |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Material | STEEL COMP 316 BODY |
| Material | STEEL COMP 316 FLOW CONTROL DEVICE |
| Material | GRAPHITE PACKING |
| 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 |
|---|---|
| 0251LA-291FGF-3MG | W & O Supply Inc (USA) |
| Reference | Meaning |
|---|---|
| 1LA-291FGF-3MG | D/9 Drawing number reference only Mcc Holdings, Inc. Dba Crane Valve North America Div Crane Chempharma & Energy |
| 0251LA-291FGF-3MG | 3/9 Design control — primary reference Mcc Holdings, Inc. Dba Crane Valve North America Div Crane Chempharma & Energy |
NSN 4820-01-560-1344 is a Valve,butterfly, manufactured by W & O Supply Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-560-1344 has 1 manufacturer part number on file: 0251LA-291FGF-3MG (W & O Supply Inc).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-560-2200, 4820-01-560-2203, 5330-01-560-8017. Verify interchangeability with system specifications before substitution.
Key specifications for 0251LA-291FGF-3MG: Style Designator: STRAIGHT THRU FLANGED ENDS; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Valve Size: 2.500 INCHES IN; Specification/standard Data: 81349-MIL-V-24624 GOVERNMENT SPECIFICATION. 11 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.