The Valve,diaphragm,stop, cataloged under National Stock Number 4820-01-074-7969, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hamworthy Inc.. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-074-7969 |
| Primary Part Number | 114651 |
| Item Name | Valve,diaphragm,stop |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hamworthy Inc. |
| Status | ACTIVE |
| Recess Nominal Depth | 0.105 INCHES THIRD END IN |
| Flange Shape | ROUND THIRD END |
| Nominal Pipe Size Accommodated | 1.500 INCHES FIRST END IN |
| Flange Face Design | RECESSED WITH GASKET GROOVE THIRD END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Bolt Circle Nominal Diameter | 4.250 INCHES THIRD END IN |
| Connection Type | FLANGE THIRD END |
| Style Designator | TEE W/OFFSET |
| Bolt Hole Nominal Diameter | 0.285 INCHES THIRD END IN |
| Offset Distance | 2.500 INCHES IN |
| Bonnet Type | INSIDE SPRING |
| Nominal Outside Diameter | 5.625 INCHES THIRD END IN |
| Bolt Hole Quantity | 4 THIRD END |
| Bonnet Attachment Method | BOLTED |
| Material | RUBBER SYNTHETIC FLOW CONTROL DEVICE |
| Material | PLASTIC POLYVINYLIDENE CHLORIDE BODY |
| Valve Operation Method | AUTOMATIC |
| Nominal Thickness | 0.402 INCHES THIRD END IN |
| Recess Nominal Diameter | 3.360 INCHES THIRD END 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 |
|---|---|
| D90066CA001 | Precision Control Incorporated (USA) |
| 114651 PRIMARY | Hamworthy Inc. (USA) |
| Reference | Meaning |
|---|---|
| D90066CA001 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-074-7969 is a Valve,diaphragm,stop, manufactured by Hamworthy Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-074-7969 has 2 manufacturer part numbers on file: D90066CA001 (Precision Control Incorporated), 114651 (Hamworthy Inc.).
1 possible match (shared part number, not a government interchangeability claim): 2040-01-211-1235. Verify interchangeability with system specifications before substitution.
Key specifications for 114651: Recess Nominal Depth: 0.105 INCHES THIRD END IN; Flange Shape: ROUND THIRD END; Nominal Pipe Size Accommodated: 1.500 INCHES FIRST END IN; Flange Face Design: RECESSED WITH GASKET GROOVE THIRD END. 19 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.