The Adapter,straight,flange to Boss, cataloged under National Stock Number 4730-00-019-7982, 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 De Havilland Aircraft of Canada Limited. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-019-7982 |
| Primary Part Number | C4FM1436-1 |
| Item Name | Adapter,straight,flange to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | De Havilland Aircraft of Canada Limited |
| Status | ACTIVE |
| Flange Face Design | PLAIN FIRST END |
| Connection Style | GASKET SEAL (BOSS) SECOND END |
| Nominal Length | 2.880 INCHES FIRST END IN |
| Bolt Circle Nominal Diameter | 2.250 INCHES FIRST END IN |
| Bolt Hole Nominal Diameter | 0.261 INCHES FIRST END IN |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Bolt Hole Quantity | 2 FIRST END |
| Nominal Width | 1.810 INCHES FIRST END IN |
| Thread Class | 3B SECOND END |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END |
| Nominal Thickness | 0.250 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 |
|---|---|
| C4FM1436-1 PRIMARY | De Havilland Aircraft of Canada Limited (CAN) |
| C4FM1436-1 | De Havilland Inc (CAN) |
NSN 4730-00-019-7982 is a Adapter,straight,flange to Boss, manufactured by De Havilland Aircraft of Canada Limited, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-019-7982 has 2 manufacturer part numbers on file: C4FM1436-1 (De Havilland Aircraft of Canada Limited), C4FM1436-1 (De Havilland Inc).
Key specifications for C4FM1436-1: Flange Face Design: PLAIN FIRST END; Connection Style: GASKET SEAL (BOSS) SECOND END; Nominal Length: 2.880 INCHES FIRST END IN; Bolt Circle Nominal Diameter: 2.250 INCHES FIRST END IN. 12 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.