The Plug,tube Fitting,threaded, cataloged under National Stock Number 4730-01-077-7995, 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 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-077-7995 |
| Primary Part Number | ST7M384D4-1 |
| 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 | 0.194 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARED |
| Style Designator | PLUG, TUBE FITTING FLARED (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC) |
| Material Document and Classification | QQ-A-225/4,TEMPER T6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/6,TEMPER T6 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-225/6,TEMPER T851 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-225/9,TEMPER T73 FED SPEC 3RD MATERIAL RESPONSE OVERALL |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Features Provided | SAFETY WIRE HOLE |
| Thread Direction | RIGHT-HAND EXTERNAL |
| Nominal Thread Size | 0.438 INCHES EXTERNAL IN |
| Seat Angle | 37.0 DEGREES |
| Surface Treatment | ANODIZE OVERALL |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| Thread Class | 3A EXTERNAL A |
| Material | ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 7075 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) EXTERNAL |
| 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 |
|---|---|
| ST7M384D4-1 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| ST7M384 | D/9 Drawing number reference only The Boeing Company Div Defense |
| ST7M384D4-1 | 5/9 Secondary reference Br Machine Parts Inc |
NSN 4730-01-077-7995 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 4730-01-077-7995 has 1 manufacturer part number on file: ST7M384D4-1 (The Boeing Company Div Defense).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-194-0172. Verify interchangeability with system specifications before substitution.
Key specifications for ST7M384D4-1: Head Height: 0.194 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARED; Style Designator: PLUG, TUBE FITTING FLARED (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC). 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.
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.