The Adapter,straight,flange to Boss, cataloged under National Stock Number 4730-00-450-9950, 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 Rotair Aerospace Corp. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-450-9950 |
| Primary Part Number | 209-062-652-1 |
| Item Name | Adapter,straight,flange to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rotair Aerospace Corp |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES FIRST END |
| Flange Face Design | RAISED STRAIGHT FIRST END |
| Connection Style | GASKET SEAL (BOSS) SECOND END |
| Nominal Length | 2.240 INCHES FIRST END IN |
| Nominal Overall Length | 0.468 INCHES IN |
| Connection Type | THREADED INTERNAL BOSS SECOND END |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.279 INCHES FIRST END IN |
| Nominal Thread Size | 0.875 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 1.376 INCHES FIRST END IN |
| Bolt Hole Quantity | 4 FIRST END |
| Nominal Width | 0.240 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 1.376 INCHES FIRST END IN |
| Thread Class | 3B SECOND END |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END |
| Raised Face Nominal Diameter | 1.361 INCHES FIRST END IN |
| Raised Face Nominal Height | 0.100 INCHES FIRST END IN |
| Nominal Thickness | 0.100 INCHES FIRST END 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 |
|---|---|
| 209-062-652-1 | Rotair Aerospace Corp (USA) |
| Reference | Meaning |
|---|---|
| 209-062-652-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-450-9950 is a Adapter,straight,flange to Boss, manufactured by Rotair Aerospace Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-450-9950 has 1 manufacturer part number on file: 209-062-652-1 (Rotair Aerospace Corp).
Key specifications for 209-062-652-1: Flange Shape: RECTANGULAR WITH HOLES FIRST END; Flange Face Design: RAISED STRAIGHT FIRST END; Connection Style: GASKET SEAL (BOSS) SECOND END; Nominal Length: 2.240 INCHES FIRST END IN. 19 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.