The Flange,pipe,swivel Retaining, cataloged under National Stock Number 4730-00-198-2162, 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 15 specifications, cited from the U.S. Government catalog. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-198-2162 |
| Item Name | Flange,pipe,swivel Retaining |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Face Seating Surface Condition | MACHINED |
| Flange Width Across Flats | 4.000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE 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 | REGULAR HEXAGON, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.328 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-637,COMP 1137 FED SPEC SINGLE MATERIAL RESPONSE |
| Recess Diameter | 3.291 INCHES NOMINAL IN |
| Bolt Hole Quantity | 6 |
| Bolt Circle Diameter | 3.812 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM |
| Material | STEEL |
| 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 |
|---|---|
| MS20756-40 | 5/9 Secondary reference Crown Fitting Co Inc |
| MS20756-40 | 5/1 Secondary reference Hydrasearch Company, Llc |
| MS20756-40 | C/1 Advisory reference — outside the item-of-supply concept Metpath Inc Sub of Corning Glass Works |
| MS20756-40 | 5/9 Secondary reference Parker Hannifin Corp Stratoflex Div Aircraft Fittings Opn |
| MS20756-40 | 5/1 Secondary reference Hydro-Fitting Manufacturing Corporation |
| MS20756-40 | 5/1 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| MS20756-40 | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| MS20756-40 | 5/1 Secondary reference Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply |
| SAE-AS4875 | 5/1 Secondary reference Sae International Dba Sae International |
| MS20756-40 | 2/2 Government specification standardization U.S. Government activity |
| AS4875 | 5/1 Secondary reference Sae International Dba Sae International |
NSN 4730-00-198-2162 is a Flange,pipe,swivel Retaining, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-198-2162: Face Seating Surface Condition: MACHINED; Flange Width Across Flats: 4.000 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE; Socket Depth: 0.168 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.