The Locknut,tube Fitting, cataloged under National Stock Number 4730-00-540-0620, 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 Asc International, Inc. Dba Asc International Inc Div Asc 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-540-0620 |
| Primary Part Number | 60-5980 |
| Item Name | Locknut,tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Asc International, Inc. Dba Asc International Inc Div Asc International |
| Status | ACTIVE |
| Width Across Flats | 1.000 INCHES NOMINAL IN |
| Packing Recess Diameter | 0.830 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.562 INCHES IN |
| Nut Height | 0.200 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Nut Style | TUBE FITTING LOCKNUT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | ALUMINUM ALLOY OVERALL |
| Nominal Tube Outside Diameter | 0.375 INCHES IN |
| Packing Recess Depth | 0.042 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 |
| Part Number | Manufacturer |
|---|---|
| 60-5980 | Asc International, Inc. Dba Asc International Inc Div Asc International (USA) |
| Reference | Meaning |
|---|---|
| 60-5980 | 3/2 Design control — primary reference U.S. Government activity |
| 60-5980 | 5/9 Secondary reference Western Manufacturing Co Llc Dba Western Manufacturing |
NSN 4730-00-540-0620 is a Locknut,tube Fitting, manufactured by Asc International, Inc. Dba Asc International Inc Div Asc International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-540-0620 has 1 manufacturer part number on file: 60-5980 (Asc International, Inc. Dba Asc International Inc Div Asc International).
Key specifications for 60-5980: Width Across Flats: 1.000 INCHES NOMINAL IN; Packing Recess Diameter: 0.830 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNF. 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.