The Elbow,tube, cataloged under National Stock Number 4730-01-235-3566, 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 Lockheed Martin Corp. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-235-3566 |
| Primary Part Number | ST57D103-2 |
| Item Name | Elbow,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Lockheed Martin Corp |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARED (TUBE) SECOND END |
| Connection Style | SWAGED W/ GROOVES (TUBE) FIRST END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Material Document and Classification | AMS5656,TY 21-6-9 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 1.118 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.262 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.562 INCHES SECOND END IN |
| Seat Angle | 37.0 DEGREES SECOND END |
| Maximum Operating Temp | 96.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A SECOND END A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END |
| 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 |
|---|---|
| H10064-06 | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| AC1099C06 | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| D10064-06 | Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA) |
| ST57D103-2 PRIMARY | Lockheed Martin Corp (USA) |
| Reference | Meaning |
|---|---|
| ST57D103 | D/9 Drawing number reference only Lockheed Martin Corp |
| LD83145-06 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| H10064-06 | 5/9 Secondary reference Stanley Harrison Corporation |
NSN 4730-01-235-3566 is a Elbow,tube, manufactured by Lockheed Martin Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-235-3566 has 4 manufacturer part numbers on file: H10064-06 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), AC1099C06 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), D10064-06 (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company), ST57D103-2 (Lockheed Martin Corp).
Key specifications for ST57D103-2: Flow Angle: 90.0 DEGREES; Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARED (TUBE) SECOND END; Connection Style: SWAGED W/ GROOVES (TUBE) FIRST END. 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.