The Coupling Assembly,self-Sealing, cataloged under National Stock Number 4730-00-024-9491, 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 11 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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 | 4730-00-024-9491 |
| Primary Part Number | 5101-4B |
| 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 | 0.438 INCHES NOMINAL IN |
| Connection Style | PLAIN FIRST QUICK DISCONNECT END |
| Style Designator | COUPLING ASSEMBLY |
| Operating Pressure | 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Second End Relationship with First End | IDENTICAL |
| Features Provided | SELF-SEALING |
| Nominal Thread Size | 0.125 INCHES FIRST QUICK DISCONNECT END IN |
| Maximum Operating Temp | 121.0 CELSIUS SINGLE RESPONSE DEGC |
| First Leg Length | 0.438 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Thread Series Designator | NPT 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 |
|---|---|
| 5101-4B PRIMARY | Danfoss Power Solutions II, Llc (USA) |
| K9697655 | General Electric Company (USA) |
| 702643 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 12Z6023-1 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 4730-00-024-9491 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 4730-00-024-9491 has 4 manufacturer part numbers on file: 5101-4B (Danfoss Power Solutions II, Llc), K9697655 (General Electric Company), 702643 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 12Z6023-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 2840-00-326-3685. Verify interchangeability with system specifications before substitution.
Key specifications for 5101-4B: Second Leg Length: 0.438 INCHES NOMINAL IN; Connection Style: PLAIN FIRST QUICK DISCONNECT END; Style Designator: COUPLING ASSEMBLY; Overall Length: 3.234 INCHES NOMINAL IN. 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.
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.