The Coupling Assembly,self-Sealing, cataloged under National Stock Number 4730-01-104-6370, 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 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution. 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. 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 | 4730-01-104-6370 |
| Primary Part Number | 390058-4 |
| Item Name | Coupling Assembly,self-Sealing |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE BODY |
| Second Leg Length | 0.550 INCHES NOMINAL IN |
| Connection Style | FLARED FIRST QUICK DISCONNECT END |
| Connection Type | THREADED EXTERNAL TUBE FIRST QUICK DISCONNECT END |
| Style Designator | COUPLING ASSEMBLY |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST QUICK DISCONNECT END IN |
| Operating Pressure | 1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Second End Relationship with First End | IDENTICAL |
| Nominal Thread Size | 0.438 INCHES FIRST QUICK DISCONNECT END IN |
| Seat Angle | 37.0 DEGREES |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| First Leg Length | 1.016 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE BODY |
| Thread Class | 3A FIRST QUICK DISCONNECT END A |
| Material | ALUMINUM BODY |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST QUICK DISCONNECT 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 |
|---|---|
| 390058-4 PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
NSN 4730-01-104-6370 is a Coupling Assembly,self-Sealing, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-104-6370 has 1 manufacturer part number on file: 390058-4 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-160-4694. Verify interchangeability with system specifications before substitution.
Key specifications for 390058-4: Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE BODY; Second Leg Length: 0.550 INCHES NOMINAL IN; Connection Style: FLARED FIRST QUICK DISCONNECT END; Connection Type: THREADED EXTERNAL TUBE FIRST QUICK DISCONNECT END. 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.