The Coupling,tube, cataloged under National Stock Number 4730-01-370-1293, 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 Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-370-1293 |
| Primary Part Number | DMD10450V04 |
| Item Name | Coupling,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS2486 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARELESS (TUBE) SECOND END |
| Connection Style | SWAGED W/ GROOVES (TUBE) FIRST END |
| Nominal Overall Length | 3.433 INCHES IN |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Style Designator | SWAGED AND THREADED EXTERNAL |
| Material Document and Classification | AMS4911 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4921 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Operating Pressure | 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.437 INCHES SECOND END IN |
| Seat Angle | 12.0 DEGREES SECOND END |
| Surface Treatment | PHOSPHATE OVERALL |
| Thread Class | 3A SECOND END A |
| Material | TITANIUM ALLOY UNS R54520 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END |
| 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 |
|---|---|
| DMD10450V04 PRIMARY | Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA) |
| Reference | Meaning |
|---|---|
| 7D0235T04 | 3/2 Design control — primary reference U.S. Government activity |
| 7D0235 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-370-1293 is a Coupling,tube, manufactured by Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-370-1293 has 1 manufacturer part number on file: DMD10450V04 (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company).
4 possible matches (shared part number, not a government interchangeability claim): 4730-01-370-1294, 4730-01-370-1295, 4730-01-370-5387. Verify interchangeability with system specifications before substitution.
Key specifications for DMD10450V04: Surface Treatment Document and Classification: AMS2486 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARELESS (TUBE) SECOND END; Connection Style: SWAGED W/ GROOVES (TUBE) FIRST END; Nominal Overall Length: 3.433 INCHES IN. 16 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.