The Coupling Assembly,quick Disconne, cataloged under National Stock Number 4730-01-031-4026, 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 Northrop Grumman Systems Corporation. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-031-4026 |
| Primary Part Number | A51P30142-17 |
| Item Name | Coupling Assembly,quick Disconne |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Flow Angle | 37.0 DEGREES |
| Connection Type | THREADED INTERNAL TUBE FIRST FLUID END CONNECTION |
| Exterior Color | WHITE |
| Material | ALUMINUM ALLOY OVERALL |
| Quick Disconnect Method | QUICK LEAD THREAD ALL ENDS |
| 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 |
|---|---|
| A51P30142-17 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51P30142-17 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| A51P30142-17 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
NSN 4730-01-031-4026 is a Coupling Assembly,quick Disconne, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-031-4026 has 1 manufacturer part number on file: A51P30142-17 (Northrop Grumman Systems Corporation).
Key specifications for A51P30142-17: Flow Angle: 37.0 DEGREES; Connection Type: THREADED INTERNAL TUBE FIRST FLUID END CONNECTION; Exterior Color: WHITE; Special Features: SELF LOCKING, WITH ELECTRICAL BONDING DEVICE. 5 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.