The Valve,butterfly, cataloged under National Stock Number 4820-01-652-2371, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowline Valve and Controls, L.l.c.. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-652-2371 |
| Primary Part Number | 76-025N-5917R30 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Flowline Valve and Controls, L.l.c. |
| Status | ACTIVE |
| Bolt Circle Nominal Diameter | 5.50 INCHES ALL ENDS IN |
| Style Designator | STRAIGHT THRU |
| Valve Size | 2.50 INCHES IN |
| Specification/standard Data | 81349/MIL-V-24624 GOVERNMENT SPECIFICATION |
| Mounting Facility | WAFER |
| Bolt Hole Quantity | 4 ALL ENDS |
| Face to Face Distance | 1.89 INCHES IN |
| Material | ALUMINUM AND BRONZE BODY |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE AND STEEL COMP 316 SEAT |
| Raised Face Nominal Diameter | 4.13 INCHES ALL ENDS IN |
| 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 |
|---|---|
| 76-025N-5917R30 PRIMARY | Flowline Valve and Controls, L.l.c. (USA) |
| Reference | Meaning |
|---|---|
| FL 76N-0150-1AB-R1 REV D | D/9 Drawing number reference only Flowline Valve and Controls, L.l.c. |
NSN 4820-01-652-2371 is a Valve,butterfly, manufactured by Flowline Valve and Controls, L.l.c., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-652-2371 has 1 manufacturer part number on file: 76-025N-5917R30 (Flowline Valve and Controls, L.l.c.).
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-652-2374, 4820-01-652-2376, 4820-01-652-2380. Verify interchangeability with system specifications before substitution.
Key specifications for 76-025N-5917R30: Bolt Circle Nominal Diameter: 5.50 INCHES ALL ENDS IN; Style Designator: STRAIGHT THRU; Valve Size: 2.50 INCHES IN; Specification/standard Data: 81349/MIL-V-24624 GOVERNMENT SPECIFICATION. 12 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.