The Coupling Flexible Flange, cataloged under National Stock Number 4730-01-375-7982, 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 Bemco, Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-375-7982 |
| Primary Part Number | BE803-1 |
| Item Name | Coupling Flexible Flange |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Bemco, Inc |
| Status | ACTIVE |
| General Characteristics Item Description | COUPLING ALUM ALLOY 6061-T6 PER QQ-A-250/II OR SHALL MEET MIL-H-8796 TYPE III CLASS 3 REQUIREMENTS.FLANGE REINFORCEMENT 2024-T4 ALUM ALLOY PER QQ-A-250/4.4.6 IN LG;3.00 IN ID;FLANGE AT 60 DEGREE ANGLE TO CENTER OF CYL;DUCT BEADED PER MS33660 IN |
| Specification/standard Data | 81755-C9670-1 MANUFACTURERS SPECIFICATION CONTROL |
| 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 |
|---|---|
| BE803-1 PRIMARY | Bemco, Inc (USA) |
| Reference | Meaning |
|---|---|
| C9670-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 4730-01-375-7982 is a Coupling Flexible Flange, manufactured by Bemco, Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-375-7982 has 1 manufacturer part number on file: BE803-1 (Bemco, Inc).
Key specifications for BE803-1: General Characteristics Item Description: COUPLING ALUM ALLOY 6061-T6 PER QQ-A-250/II OR SHALL MEET MIL-H-8796 TYPE III CLASS 3 REQUIREMENTS.FLANGE REINFORCEMENT 2024-T4 ALUM ALLOY PER QQ-A-250/4.4.6 IN LG;3.00 IN ID;FLANGE AT 60 DEGREE ANGLE TO CENTER OF CYL;DUCT BEADED PER MS33660 IN; Specification/standard Data: 81755-C9670-1 MANUFACTURERS SPECIFICATION CONTROL; Special Features: COUPLING SHALL BE TESTED FOR FLEXIBILITY REQUIREMENT AS SPECIFIED. 2 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.