The Coupling Assembly,self-Sealing, cataloged under National Stock Number 4730-00-620-3923, 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 Danfoss Power Solutions II, Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-620-3923 |
| Primary Part Number | 510104-10B |
| Item Name | Coupling Assembly,self-Sealing |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Danfoss Power Solutions II, Llc |
| Status | ACTIVE |
| Second Leg Length | 1.660 INCHES NOMINAL IN |
| Connection Style | BOSS GASKET SEAL FIRST QUICK DISCONNECT END |
| Connection Type | THREADED INTERNAL BOSS FIRST QUICK DISCONNECT END |
| Style Designator | COUPLING ASSEMBLY |
| Operating Pressure | 1750.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Second End Relationship with First End | IDENTICAL |
| Nominal Thread Size | 0.500 INCHES FIRST QUICK DISCONNECT END IN |
| Maximum Operating Temp | 160.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Maximum Operating Temp | 160.0 FAHRENHEIT FIRST RESPONSE DEGF |
| First Leg Length | 1.660 INCHES NOMINAL IN |
| Media for Which Designed | HYDRAULIC FLUID, PHOSPHATE-ESTER BASE FIRST RESPONSE |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SECOND RESPONSE |
| Material | COPPER ALLOY BODY |
| Thread Series Designator | NPTF 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 |
|---|---|
| 510104-10B PRIMARY | Danfoss Power Solutions II, Llc (USA) |
| Reference | Meaning |
|---|---|
| 4090404 | 5/9 Secondary reference U.S. Government activity |
| 409-04-31 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-00-620-3923 is a Coupling Assembly,self-Sealing, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-620-3923 has 1 manufacturer part number on file: 510104-10B (Danfoss Power Solutions II, Llc).
Key specifications for 510104-10B: Second Leg Length: 1.660 INCHES NOMINAL IN; Connection Style: BOSS GASKET SEAL FIRST QUICK DISCONNECT END; Connection Type: THREADED INTERNAL BOSS FIRST QUICK DISCONNECT END; Style Designator: COUPLING ASSEMBLY. 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.