The Nut,union, cataloged under National Stock Number 4730-00-901-6293, 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 Nassau Tool Works, Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 10 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-901-6293 |
| Primary Part Number | A414240-7 |
| Item Name | Nut,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Nassau Tool Works, Inc |
| Status | ACTIVE |
| Width Across Flats | 3.500 INCHES NOMINAL IN |
| Shoulder Step Width | 0.375 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN |
| Shoulder Width | 0.375 INCHES NOMINAL IN |
| Thread Series | UNS |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nut Height | 1.500 INCHES NOMINAL IN |
| Material | STEEL COMP 4130 OVERALL |
| Smallest Inside Diameter | 2.565 INCHES MINIMUM AND 2.568 INCHES MAXIMUM IN |
| Shoulder Seat Diameter | 3.067 INCHES MINIMUM AND 3.077 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| A414240-7 | Nassau Tool Works, Inc (USA) |
| A414240-7 | Hamill Manufacturing Company Dba Hamill Manufacturing Co (USA) |
| A414240-7 | Billet Industries Inc Dba Billet Industries Inc (USA) |
| A414240-7 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| A414240-7 | Krobach Mfg. Corp. Dba Krobach Manufacturing Corp (USA) |
| A414240-7 | Bec Systems Llc Dba Bec Machine Products (USA) |
| A414240-7 | Ammcon Corp. (USA) |
| A414240-7 | Pre-Mach Inc (USA) |
| A414240-7 | Airtronics, Llc (USA) |
| A414240-7 | Duhadaway Tool & Die Shop Inc (USA) |
| Reference | Meaning |
|---|---|
| A414240-7 | 5/9 Secondary reference Master Research & Manufacturing, Inc. Dba Master Research & Manufacturing Inc |
| A414240-7 | 5/9 Secondary reference Computa-Base-Machining, Inc. |
| A414240-7 | 5/9 Secondary reference Nuflo, Inc. |
| A414240-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-901-6293 is a Nut,union, manufactured by Nassau Tool Works, Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-901-6293 has 10 manufacturer part numbers on file: A414240-7 (Nassau Tool Works, Inc), A414240-7 (Hamill Manufacturing Company Dba Hamill Manufacturing Co), A414240-7 (Billet Industries Inc Dba Billet Industries Inc), A414240-7 (Sps Technologies, Llc Dba PB Fasteners), A414240-7 (Krobach Mfg. Corp. Dba Krobach Manufacturing Corp) and 5 more.
Key specifications for A414240-7: Width Across Flats: 3.500 INCHES NOMINAL IN; Shoulder Step Width: 0.375 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN; Shoulder Width: 0.375 INCHES NOMINAL IN; Thread Series: UNS. 10 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.