The Nut,tube Coupling, cataloged under National Stock Number 4730-00-009-2133, 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 16 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-009-2133 |
| Primary Part Number | ST57D100-4 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Lockheed Martin Corp |
| Status | ACTIVE |
| Length to Shoulder | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| Width Across Flats | 1.245 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC 1ST TREATMENT RESPONSE AND QQ-P-35 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT (UNJ) |
| Material Document and Classification | 66,AISI 304/SAE 30304 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Seat Angle | 45.00 DEGREES NOMINAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.062 INCHES IN |
| Nut Height | 1.047 INCHES MINIMUM AND 1.070 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | TUBE COUPLING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP 304 OR STEEL CORROSION RESISTING OVERALL |
| Smallest Inside Diameter | 0.859 INCHES MINIMUM AND 0.869 INCHES MAXIMUM IN |
| Nominal Tube Outside Diameter | 0.750 INCHES IN |
| 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 |
|---|---|
| ST57D100-4 | Lockheed Martin Corp (USA) |
| D10006J12 | Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA) |
| Reference | Meaning |
|---|---|
| H10006-12 | 3/9 Design control — primary reference Stanley Harrison Corporation |
| D10006-12 | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| LD83096-12 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| AC1170C12 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| AC1180C12 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| H10006J12 | 5/9 Secondary reference Stanley Harrison Corporation |
| D10006-12 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
NSN 4730-00-009-2133 is a Nut,tube Coupling, manufactured by Lockheed Martin Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-009-2133 has 2 manufacturer part numbers on file: ST57D100-4 (Lockheed Martin Corp), D10006J12 (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company).
Key specifications for ST57D100-4: Length to Shoulder: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN; Width Across Flats: 1.245 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC 1ST TREATMENT RESPONSE AND QQ-P-35 FED SPEC 2ND TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL JOINT (UNJ). 16 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.