The Coupling,pipe, cataloged under National Stock Number 4730-00-293-7565, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Diamond Power International, Inc.. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-293-7565 |
| Primary Part Number | N3-19009-356FM1220 |
| Item Name | Coupling,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Diamond Power International, Inc. |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) ALL ENDSPLAIN (PIPE) ALL ENDS |
| Nominal Overall Length | 3.125 INCHES IN |
| Connection Type | THREADED INTERNAL PIPE ALL ENDSTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | THREADED INTERNAL |
| Operating Pressure | 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 2.000 INCHES ALL ENDS2.000 INCHES ALL ENDS IN |
| Maximum Operating Temp | 254.0 CELSIUS SINGLE RESPONSE254.0 CELSIUS SINGLE RESPONSE DEGC |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Material | STEEL OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| 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 |
|---|---|
| 321998-4014 | Diamond Power International, Inc. (USA) |
| N3-19009-356FM1220 PRIMARY | Diamond Power International, Inc. (USA) |
| 321998-1010 PRIMARY | Diamond Power International, Inc. (USA) |
| N3-19009-356FM1220 | Babcock & Wilcox Co (USA) |
| 321998-1010 | Babcock & Wilcox Co (USA) |
| Reference | Meaning |
|---|---|
| 321998-4014 | 5/9 Secondary reference Diamond Electronics Inc |
| 321998-1010 | 5/9 Secondary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| N3-19009-356FM1220 | 5/9 Secondary reference Diamond Electronics Inc |
| 321998-1010 | 5/9 Secondary reference Diamond Electronics Inc |
| N3-19009-356FM1220 | 5/9 Secondary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
NSN 4730-00-293-7565 is a Coupling,pipe, manufactured by Diamond Power International, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-293-7565 has 5 manufacturer part numbers on file: 321998-4014 (Diamond Power International, Inc.), N3-19009-356FM1220 (Diamond Power International, Inc.), 321998-1010 (Diamond Power International, Inc.), N3-19009-356FM1220 (Babcock & Wilcox Co), 321998-1010 (Babcock & Wilcox Co).
Key specifications for N3-19009-356FM1220: Connection Style: PLAIN (PIPE) ALL ENDSPLAIN (PIPE) ALL ENDS; Nominal Overall Length: 3.125 INCHES IN; Connection Type: THREADED INTERNAL PIPE ALL ENDSTHREADED INTERNAL PIPE ALL ENDS; Style Designator: THREADED INTERNAL. 10 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.