The Elbow,tube, cataloged under National Stock Number 4730-01-128-4173, 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 19 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-128-4173 |
| Primary Part Number | ST7M432T6 |
| Item Name | Elbow,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Connection Style | SWAGED W/ GROOVES (TUBE) SECOND END |
| Connection Style | SWIVEL NUT INVERTED FLARE (TUBE) FIRST END |
| Criticality Code Justification | FEAT |
| Connection Type | UNTHREADED INTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Material Document and Classification | AMS4921 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | AMS4965 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Leg Length | 0.820 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.360 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Seat Angle | 8.5 DEGREES FIRST END |
| Thread Class | 3B FIRST END |
| Thread Quantity Per Inch | 20 FIRST END |
| Material | TITANIUM ALLOY NUT |
| Material | TITANIUM BODY |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) FIRST END |
| 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 |
|---|---|
| H11009E06 | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| ST7M432T6 PRIMARY | The Boeing Company Div Defense (USA) |
| D11009TE06 | Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA) |
| Reference | Meaning |
|---|---|
| 10108620 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| AC1055T06 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| ST7M432 | D/9 Drawing number reference only The Boeing Company Div Defense |
| H11009E06 | 5/9 Secondary reference Stanley Harrison Corporation |
| LD82001TE06 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
NSN 4730-01-128-4173 is a Elbow,tube, manufactured by The Boeing Company Div Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-128-4173 has 3 manufacturer part numbers on file: H11009E06 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), ST7M432T6 (The Boeing Company Div Defense), D11009TE06 (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company).
6 possible matches (shared part number, not a government interchangeability claim): 4730-01-128-9091, 4730-01-131-3823, 4730-01-131-3824. Verify interchangeability with system specifications before substitution.
Key specifications for ST7M432T6: Flow Angle: 90.0 DEGREES; Connection Style: SWAGED W/ GROOVES (TUBE) SECOND END; Connection Style: SWIVEL NUT INVERTED FLARE (TUBE) FIRST END; Criticality Code Justification: FEAT. 19 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.