The Flange,pipe,swivel Retaining, cataloged under National Stock Number 4730-00-640-5095, 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 Satair A/s. 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through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-640-5095 |
| Primary Part Number | MS20756D40 |
| Item Name | Flange,pipe,swivel Retaining |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Satair A/s |
| Status | ACTIVE |
| Face Seating Surface Condition | MACHINED |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 2 MIL SPEC 1ST TREATMENT RESPONSE |
| Socket Depth | 0.168 INCHES NOMINAL IN |
| Tube Outside Diameter for Which Designed | 2.500 INCHES NOMINAL IN |
| Flange Section Style | PLAIN FACE, SOCKET NECK |
| Style Designator | SQUARE, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.328 INCHES NOMINAL IN |
| Specification/standard Data | 81349-MIL-F-5509 GOVERNMENT SPECIFICATION |
| Recess Diameter | 3.291 INCHES NOMINAL IN |
| Bolt Hole Quantity | 6 |
| Bolt Circle Diameter | 3.812 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE |
| Flange Width | 4.000 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| 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 |
| Part Number | Manufacturer |
|---|---|
| MS20756D40 | Satair A/s (DNK) |
| Reference | Meaning |
|---|---|
| MS20756D40 | 5/9 Secondary reference Collins Engineering Corp |
| MS20756D40 | 5/1 Secondary reference Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply |
| MS20756D40 | 5/1 Secondary reference Hydrasearch Company, Llc |
| MS20756D40 | 5/1 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| AS4875 | 5/1 Secondary reference Sae International Dba Sae International |
| MS20756D40 | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| MS20756-D40 | 2/2 Government specification standardization U.S. Government activity |
| MIL-F-5509 | 5/9 Secondary reference U.S. Government activity |
| AN756D40 | 5/9 Secondary reference U.S. Government activity |
| MS20756D40 | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| SAE-AS4875 | 5/1 Secondary reference Sae International Dba Sae International |
NSN 4730-00-640-5095 is a Flange,pipe,swivel Retaining, manufactured by Satair A/s, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-640-5095 has 1 manufacturer part number on file: MS20756D40 (Satair A/s).
Key specifications for MS20756D40: Face Seating Surface Condition: MACHINED; Surface Treatment Document and Classification: MIL-A-8625,TYPE 2 MIL SPEC 1ST TREATMENT RESPONSE; Socket Depth: 0.168 INCHES NOMINAL IN; Tube Outside Diameter for Which Designed: 2.500 INCHES NOMINAL IN. 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.