The Coupling,boss, cataloged under National Stock Number 4730-01-129-0778, 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 The Boeing Company Div Defense. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-129-0778 |
| Primary Part Number | 7M485-1 |
| Item Name | Coupling,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | GASKET SEAL (BOSS) ALL ENDS |
| Nominal Overall Length | 1.745 INCHES IN |
| Criticality Code Justification | FEAT |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Style Designator | RIGID, WRENCHING FACILITIES EACH END |
| Nominal Thread Size | 0.375 INCHES ALL ENDS IN |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 2B ALL ENDS |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 7M485-1 | The Boeing Company Div Services (USA) |
| 7M485-1 | Kmi, Inc Dba Kmi Inc (USA) |
| 7M485-1 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 7M485 | D/9 Drawing number reference only The Boeing Company Div Defense |
| 10108656 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 4730-01-129-0778 is a Coupling,boss, manufactured by The Boeing Company Div Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-129-0778 has 3 manufacturer part numbers on file: 7M485-1 (The Boeing Company Div Services), 7M485-1 (Kmi, Inc Dba Kmi Inc), 7M485-1 (The Boeing Company Div Defense).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-129-5167, 5310-01-167-4642. Verify interchangeability with system specifications before substitution.
Key specifications for 7M485-1: Surface Treatment Document and Classification: MIL-A-8625,TYPE 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: GASKET SEAL (BOSS) ALL ENDS; Nominal Overall Length: 1.745 INCHES IN; Criticality Code Justification: FEAT. 11 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.
NSN 4730-01-129-0778 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.