The Adapter,straight,flange to Boss, cataloged under National Stock Number 4730-01-226-3308, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-226-3308 |
| Item Name | Adapter,straight,flange to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES FIRST END |
| Nominal Length | 2.875 INCHES FIRST END IN |
| Nominal Overall Length | 2.875 INCHES IN |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.406 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 1.000 INCHES FIRST END IN |
| Bolt Hole Quantity | 4 FIRST END |
| Nominal Width | 1.750 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 1.750 INCHES FIRST END IN |
| Material | ALUMINUM AND COPPER ALLOY OVERALL |
| Nominal Thickness | 0.500 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 |
| Reference | Meaning |
|---|---|
| 2048218 PIECE 3 | 5/2 Secondary reference U.S. Government activity |
| 2048218 | D/9 Drawing number reference only U.S. Government activity |
| 71791-20X2 PIECE 3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-226-3308 is a Adapter,straight,flange to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-226-3308: Flange Shape: RECTANGULAR WITH HOLES FIRST END; Nominal Length: 2.875 INCHES FIRST END IN; Nominal Overall Length: 2.875 INCHES IN; Connection Type: FLANGE FIRST END. 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.
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.