The Flange,pipe, cataloged under National Stock Number 4730-01-307-0533, 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 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-307-0533 |
| Primary Part Number | 70351-84202-041 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Flange Diameter | 9.200 INCHES NOMINAL IN |
| Tube Outside Diameter for Which Designed | 2.625 INCHES MINIMUM AND 2.631 INCHES MAXIMUM IN |
| Style Designator | ROUND, TWO BOLT HOLE CIRCLES |
| Outer Bolt Circle Hole Diameter | 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-200-8 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-250-11 FED SPEC 2ND MATERIAL RESPONSE |
| Inner Bolt Circle Hole Diameter | 0.313 INCHES NOMINAL IN |
| Outer Bolt Circle Hole Quantity | 6 |
| Inner Bolt Circle Diameter | 2.500 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Outer Bolt Circle Diameter | 8.250 INCHES NOMINAL IN |
| Inner Bolt Circle Hole Quantity | 4 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 70351-84202-041 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 4730-01-307-0533 is a Flange,pipe, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-307-0533 has 1 manufacturer part number on file: 70351-84202-041 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70351-84202-041: Flange Diameter: 9.200 INCHES NOMINAL IN; Tube Outside Diameter for Which Designed: 2.625 INCHES MINIMUM AND 2.631 INCHES MAXIMUM IN; Style Designator: ROUND, TWO BOLT HOLE CIRCLES; Outer Bolt Circle Hole Diameter: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN. 11 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.
NSN 4730-01-307-0533 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.