The Adapter Bushing, cataloged under National Stock Number 4730-01-026-6687, 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 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-026-6687 |
| Item Name | Adapter Bushing |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Width Across Flats | 1.120 INCHES NOMINAL IN |
| Male End Thread Size | 7/8-14 |
| Male End Thread Direction | RIGHT-HAND |
| Wrenching Facility Shape | HEXAGON |
| Male End Screw Thread Series Designator | UNF |
| Male End Thread Class | 3A A |
| Material | PLASTIC POLYAMIDE NYLON |
| Male End Thread Length | 0.510 INCHES NOMINAL IN |
| Thickness | 0.250 INCHES NOMINAL 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 |
|---|---|
| 66-4351 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-026-6687 is a Adapter Bushing, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5340-01-309-7231. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-026-6687: Width Across Flats: 1.120 INCHES NOMINAL IN; Male End Thread Size: 7/8-14; Overall Length: 0.900 INCHES NOMINAL IN; Male End Thread Direction: RIGHT-HAND. 9 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.