The Flange,pipe,swivel Retaining, cataloged under National Stock Number 4730-00-289-0790, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-289-0790 |
| Item Name | Flange,pipe,swivel Retaining |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Face Seating Surface Condition | MACHINED |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 2 MIL SPEC 1ST TREATMENT RESPONSE |
| Maximum Operating Temp and Media for Which Designed | 275.0 FAHRENHEIT FUEL/OIL, HYDROCARBON DEGF |
| Tube Outside Diameter for Which Designed | 2.000 INCHES NOMINAL IN |
| Operating Pressure and Type | 500.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED LBS |
| Flange Section Style | PLAIN RECESSED FACE |
| Style Designator | SQUARE, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.328 INCHES NOMINAL IN |
| Recess Depth | 0.168 INCHES NOMINAL IN |
| Recess Diameter | 2.760 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 3.359 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE |
| Flange Width | 3.000 INCHES NOMINAL IN |
| Material | ALUMINUM |
| Thickness | 0.297 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MS20756D32 | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| AS4875 | 5/1 Secondary reference Sae International Dba Sae International |
| MS20756D32 | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| MS20756D32 | 5/1 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| MS20756D32 | 5/1 Secondary reference Hydro-Fitting Manufacturing Corporation |
| MS20756-D32 | 2/2 Government specification standardization U.S. Government activity |
| MS20756D32 | 5/9 Secondary reference Crown Fitting Co Inc |
| MS20756D32 | 5/1 Secondary reference Hydrasearch Company, Llc |
| MS20756D32 | 5/1 Secondary reference Aerofit, Llc |
| MS20756D32 | 5/9 Secondary reference Collins Engineering Corp |
| MS20756D32 | 5/1 Secondary reference Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply |
| AS4875 | 5/9 Secondary reference U.S. Government activity |
| SAE-AS4875 | 5/1 Secondary reference Sae International Dba Sae International |
NSN 4730-00-289-0790 is a Flange,pipe,swivel Retaining, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-289-0790: Face Seating Surface Condition: MACHINED; Surface Treatment Document and Classification: MIL-A-8625,TYPE 2 MIL SPEC 1ST TREATMENT RESPONSE; Maximum Operating Temp and Media for Which Designed: 275.0 FAHRENHEIT FUEL/OIL, HYDROCARBON DEGF; Tube Outside Diameter for Which Designed: 2.000 INCHES NOMINAL IN. 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.