The Nut,tube Coupling, cataloged under National Stock Number 4730-01-012-5091, 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 Sae International Dba Sae International. Government technical data includes 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-012-5091 |
| Primary Part Number | AS4326K08 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Length to Shoulder | 0.723 INCHES NOMINAL IN |
| Width Across Flats | 0.875 INCHES NOMINAL IN |
| Thread Series | UNF |
| Seat Angle | 45.00 DEGREES NOMINAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES IN |
| Specification/standard Data | 22264-KC142 GOVERNMENT STANDARD |
| Nut Height | 0.854 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | TUBE COUPLING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Nominal Tube Outside Diameter | 0.500 INCHES 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 |
|---|---|
| AS4326K08 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS4326K08 | 3/9 Design control — primary reference U.S. Government activity |
| KC142C8 | C/1 Advisory reference — outside the item-of-supply concept John F Kennedy Space Center Dba Nasa Div Kennedy Space Center |
| KC142K8 | C/1 Advisory reference — outside the item-of-supply concept John F Kennedy Space Center Dba Nasa Div Kennedy Space Center |
NSN 4730-01-012-5091 is a Nut,tube Coupling, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-012-5091 has 1 manufacturer part number on file: AS4326K08 (Sae International Dba Sae International).
Key specifications for AS4326K08: Length to Shoulder: 0.723 INCHES NOMINAL IN; Width Across Flats: 0.875 INCHES NOMINAL IN; Thread Series: UNF; Seat Angle: 45.00 DEGREES NOMINAL. 14 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.