The Inverted Nut,tube Coupling, cataloged under National Stock Number 4730-01-074-4342, 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 Graco High Pressure Equipment Inc. Dba High Pressure Equipment Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-074-4342 |
| Primary Part Number | 15-2AM1 |
| Item Name | Inverted Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Graco High Pressure Equipment Inc. Dba High Pressure Equipment Company |
| Status | ACTIVE |
| Width Across Flats | 0.312 INCHES NOMINAL IN |
| Material Hardness Rating | 78.0 ROCKWELL C NOMINAL |
| Strength Rating | ERR-060 |
| Tube Outside Diameter for Which Designed | 0.062 INCHES NOMINAL IN |
| Style Designator | INVERTED NUT, TUBE, COMPRESSION |
| Material Document and Classification | QQ-S-764, TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Size | 1/4-28 |
| Screw Thread Series Designator | UNF |
| Thread Class | 2A A |
| Material | STEEL COMP 303 |
| Fabrication Method | ROD STOCK, MACHINED |
| Smallest Inside Diameter | 0.065 INCHES MINIMUM AND 0.075 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 | X |
| Part Number | Manufacturer |
|---|---|
| 15-2AM1 PRIMARY | Graco High Pressure Equipment Inc. Dba High Pressure Equipment Company (USA) |
| Reference | Meaning |
|---|---|
| 3304366-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 4730-01-074-4342 is a Inverted Nut,tube Coupling, manufactured by Graco High Pressure Equipment Inc. Dba High Pressure Equipment Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-074-4342 has 1 manufacturer part number on file: 15-2AM1 (Graco High Pressure Equipment Inc. Dba High Pressure Equipment Company).
Key specifications for 15-2AM1: Width Across Flats: 0.312 INCHES NOMINAL IN; Material Hardness Rating: 78.0 ROCKWELL C NOMINAL; Strength Rating: ERR-060; Tube Outside Diameter for Which Designed: 0.062 INCHES NOMINAL IN. 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.