The Coupling Assembly,self-Sealing, cataloged under National Stock Number 4730-00-971-5027, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-971-5027 |
| Primary Part Number | 5111-12B |
| 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 |
| Connection Style | FLARE FIRST QUICK DISCONNECT END |
| Connection Type | THREADED INTERNAL TUBE FIRST QUICK DISCONNECT END |
| Style Designator | COUPLING ASSEMBLY |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES FIRST QUICK DISCONNECT END IN |
| Operating Pressure | 1750.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Second End Relationship with First End | IDENTICAL |
| Nominal Thread Size | 0.750 INCHES FIRST QUICK DISCONNECT END IN |
| Seat Angle | 37.0 DEGREES |
| Material | STEEL 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 |
|---|---|
| 5111-12B PRIMARY | Danfoss Power Solutions II, Llc (USA) |
| Reference | Meaning |
|---|---|
| 59QEA26P3 | 5/9 Secondary reference Mack Trucks Inc Parts Opn |
NSN 4730-00-971-5027 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 4730-00-971-5027 has 1 manufacturer part number on file: 5111-12B (Danfoss Power Solutions II, Llc).
Key specifications for 5111-12B: Connection Style: FLARE FIRST QUICK DISCONNECT END; Connection Type: THREADED INTERNAL TUBE FIRST QUICK DISCONNECT END; Style Designator: COUPLING ASSEMBLY; Nominal Outside Diameter Tube Accommodated: 0.750 INCHES FIRST QUICK DISCONNECT END IN. 10 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.