The Plug,tube Fitting,threaded, cataloged under National Stock Number 4730-01-522-2016, 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 The Boeing Company Div Defense. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-522-2016 |
| Primary Part Number | ST7M250P4A |
| Item Name | Plug,tube Fitting,threaded |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.162 INCHES NOMINAL IN |
| Connection Style | FLARELESS |
| Criticality Code Justification | AGAV |
| Style Designator | PLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC) |
| Material Document and Classification | AMS 5643, COND H1075 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 8000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Thread Direction | RIGHT-HAND EXTERNAL |
| Nominal Thread Size | 0.4375 INCHES EXTERNAL IN |
| Seat Angle | 37.0 DEGREES |
| Thread Class | 3A EXTERNAL A |
| Thread Quantity Per Inch | 24 EXTERNAL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNJS EXTERNAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| R44119P-4SC | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| ST7M250P4A PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 1518-13274A-4 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-522-2016 is a Plug,tube Fitting,threaded, manufactured by The Boeing Company Div Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-522-2016 has 2 manufacturer part numbers on file: R44119P-4SC (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division), ST7M250P4A (The Boeing Company Div Defense).
Key specifications for ST7M250P4A: Head Height: 0.162 INCHES NOMINAL IN; Connection Style: FLARELESS; Criticality Code Justification: AGAV; Style Designator: PLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC). 13 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.