The Flange,pipe,swivel Retaining, cataloged under National Stock Number 4730-01-161-7786, 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 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-161-7786 |
| Primary Part Number | MS20756-J12 |
| Item Name | Flange,pipe,swivel Retaining |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Flange Diameter | 2.094 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Surface Treatment Document and Classification | QQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE |
| Maximum Operating Temp and Media for Which Designed | 275.0 FAHRENHEIT ANY ACCEPTABLE DEGF |
| Tube Outside Diameter for Which Designed | 0.750 INCHES NOMINAL IN |
| Flange Section Style | PLAIN RECESSED FACE |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.205 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-763,CL 304 FED SPEC SINGLE MATERIAL RESPONSE |
| Recess Depth | 0.136 INCHES NOMINAL IN |
| Specification/standard Data | 96906-MS20756-J12 GOVERNMENT STANDARD |
| Recess Diameter | 1.125 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 1.635 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 304 |
| 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 | F |
| Part Number | Manufacturer |
|---|---|
| MS20756-J12 | B. & E. Manufacturing Co., Inc. Dba B & E Manufacturing Co Inc (USA) |
| MS20756-J12 | Hydro-Fitting Manufacturing Corporation (USA) |
| MS20756-J12 | Boeing Distribution Services Defense Llc (USA) |
| MS20756-J12 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| AS4875 | 5/1 Secondary reference Sae International Dba Sae International |
| SAE-AS4875 | 5/1 Secondary reference Sae International Dba Sae International |
| MS20756-J12 | 5/9 Secondary reference U.S. Government activity |
| AS4875 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-161-7786 is a Flange,pipe,swivel Retaining, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-161-7786 has 4 manufacturer part numbers on file: MS20756-J12 (B. & E. Manufacturing Co., Inc. Dba B & E Manufacturing Co Inc), MS20756-J12 (Hydro-Fitting Manufacturing Corporation), MS20756-J12 (Boeing Distribution Services Defense Llc), MS20756-J12 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for MS20756-J12: Flange Diameter: 2.094 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Surface Treatment Document and Classification: QQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE; Maximum Operating Temp and Media for Which Designed: 275.0 FAHRENHEIT ANY ACCEPTABLE DEGF. 17 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.