The Valve,diaphragm,stop, cataloged under National Stock Number 4820-01-361-7957, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 3 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 | 4820-01-361-7957 |
| Primary Part Number | 3039009CL |
| Item Name | Valve,diaphragm,stop |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| Mounting Facility | THREADED FASTENER |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 3039009CL PRIMARY | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
NSN 4820-01-361-7957 is a Valve,diaphragm,stop, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-361-7957 has 1 manufacturer part number on file: 3039009CL (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).
Key specifications for 3039009CL: Mounting Facility: THREADED FASTENER; Special Features: COMPRESSOR BLEED VALVE ASSY PROVIDED W/ CLASSIFIED ORIFICES WHICH CONTROL CLOSING POINT;USED TO PREVENT ENGINE SURGE,LACV-30 NSN 2835-01-144-4752; Media for Which Designed: AIR SINGLE RESPONSE; Valve Operation Method: AUTOMATIC. 3 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.