The Coupling,tube, cataloged under National Stock Number 4730-01-273-3654, 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 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-273-3654 |
| Primary Part Number | D10325-10 |
| 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 | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | SWAGED W/ GROOVES (TUBE) ALL ENDS |
| Nominal Overall Length | 5.650 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 | AMS5656 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.875 INCHES FIRST END BULKHEAD IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A FIRST END BULKHEAD A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
|---|---|
| C7856-10-2S | B. & E. Manufacturing Co., Inc. Dba B & E Manufacturing Co Inc (USA) |
| D10325-10 PRIMARY | Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA) |
| AP10136-10 | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| Reference | Meaning |
|---|---|
| 4730PL0741439 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| C7856 | 7/1 Vendor item drawing reference U.S. Government activity |
| C7856-10-2S | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-273-3654 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 4730-01-273-3654 has 3 manufacturer part numbers on file: C7856-10-2S (B. & E. Manufacturing Co., Inc. Dba B & E Manufacturing Co Inc), D10325-10 (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company), AP10136-10 (Sps Technologies, Llc Dba Airdrome Precision Components).
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-274-1836, 4730-01-274-1837, 4730-01-274-8406. Verify interchangeability with system specifications before substitution.
Key specifications for D10325-10: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: SWAGED W/ GROOVES (TUBE) ALL ENDS; Nominal Overall Length: 5.650 INCHES IN; Connection Type: THREADED EXTERNAL TUBE FIRST END BULKHEAD. 13 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.