The Adapter Bushing, cataloged under National Stock Number 4730-01-237-3216, 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 20 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-237-3216 |
| Item Name | Adapter Bushing |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Width Across Flats | 1.375 INCHES NOMINAL IN |
| Female End Characteristic | COUNTERSUNK |
| Counterbore/countersink Location | BOTH ENDS |
| Male End Thread Size | 1 1/4-16 |
| Female End Thread Length | 1.375 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZY |
| Diameter | 1.125 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Male End Thread Direction | RIGHT-HAND |
| Female End Thread Pitch Diameters | +0.6667 TO 0.6841 INCHES IN |
| Female End Thread Size | 3/4-6 |
| Wrenching Facility Shape | HEXAGON |
| Male End Screw Thread Series Designator | UN |
| Chamfer Angle in Deg | 45.0 LOCATION NOT OTHERWISE SPECIFIED |
| Female End Screw Thread Series Designator | ACME |
| Male End Thread Class | 2A A |
| Female End Thread Direction | RIGHT-HAND |
| Material | COPPER ALLOY |
| Male End Thread Length | 1.062 INCHES NOMINAL IN |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Thickness | 0.156 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | C |
| Reference | Meaning |
|---|---|
| 820-5786840 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 4730-01-237-3216 is a Adapter Bushing, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-237-3216: Width Across Flats: 1.375 INCHES NOMINAL IN; Female End Characteristic: COUNTERSUNK; Counterbore/countersink Location: BOTH ENDS; Male End Thread Size: 1 1/4-16. 20 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 4730-01-237-3216 has DEMIL Code F. 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.