The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-021-8413, 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 Triumph Actuation Systems - Connecticut, Llc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-021-8413 |
| Primary Part Number | OMP3948B4 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Triumph Actuation Systems - Connecticut, Llc |
| Status | ACTIVE |
| Connection Style | FLARELESS ALL ENDS |
| Mating End Identification | OZONE INDUSTRIES INC. COUPLING HALF,QUICK DISCONNECT PART NO. OMP3948H6 |
| Connection Type | THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES ALL ENDS IN |
| Leg Length | 1.375 INCHES NOMINAL IN |
| Features Provided | SAFETY LOCKING FEATURE AND SELF-SEALING |
| Nominal Thread Size | 1.062 INCHES ALL ENDS IN |
| Seat Angle | 45.0 DEGREES |
| Surface Treatment | PASSIVATE BODY |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Material | STEEL CORROSION RESISTING BODY |
| Quick Disconnect Method | SPRING PUSH-LOCK ALL ENDS |
| Thread Series Designator | UN ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A15HS019-3 | The Boeing Company (USA) |
| OMP3948B4 PRIMARY | Triumph Actuation Systems - Connecticut, Llc (USA) |
NSN 4730-01-021-8413 is a Coupling Half,quick Disconnect, manufactured by Triumph Actuation Systems - Connecticut, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-021-8413 has 2 manufacturer part numbers on file: A15HS019-3 (The Boeing Company), OMP3948B4 (Triumph Actuation Systems - Connecticut, Llc).
Key specifications for OMP3948B4: Connection Style: FLARELESS ALL ENDS; Mating End Identification: OZONE INDUSTRIES INC. COUPLING HALF,QUICK DISCONNECT PART NO. OMP3948H6; Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION; Style Designator: MALE COUPLING HALF. 15 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 4730-01-021-8413 has DEMIL Code B. 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.