The Coupling,tube, cataloged under National Stock Number 4730-01-274-1837, 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 14 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-274-1837 |
| Primary Part Number | D10325D12 |
| 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 | FMS-1027,TY4 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | SWAGED W/ GROOVES (TUBE) ALL ENDS |
| Nominal Overall Length | 5.870 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END BULKHEAD |
| Connection Type | UNTHREADED INTERNAL TUBE ALL ENDS |
| Style Designator | SWAGED ENDS W/BULKHEAD |
| Material Document and Classification | QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES ALL ENDS IN |
| Nominal Thread Size | 1.062 INCHES FIRST END BULKHEAD IN |
| Surface Treatment | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL |
| Thread Class | 3A FIRST END BULKHEAD A |
| Thread Quantity Per Inch | 12 FIRST END BULKHEAD |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) FIRST END BULKHEAD |
| 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 |
|---|---|
| D10325D12 PRIMARY | Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA) |
| Reference | Meaning |
|---|---|
| 4730PL1738282 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 4730PL0741449 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| C7856 | 7/1 Vendor item drawing reference U.S. Government activity |
| C7856-12-2D | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-274-1837 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 4730-01-274-1837 has 1 manufacturer part number on file: D10325D12 (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-274-8406. Verify interchangeability with system specifications before substitution.
Key specifications for D10325D12: Surface Treatment Document and Classification: FMS-1027,TY4 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Connection Style: SWAGED W/ GROOVES (TUBE) ALL ENDS; Nominal Overall Length: 5.870 INCHES IN; Connection Type: THREADED EXTERNAL TUBE FIRST END BULKHEAD. 14 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.