The Nut,tube Coupling, cataloged under National Stock Number 4730-00-431-6343, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Bijur Lubricating Corp. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-431-6343 |
| Primary Part Number | B3312 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Bijur Lubricating Corp |
| Status | ACTIVE |
| Material | STEEL OVERALL |
| Seat Angle | 25.00 DEGREES NOMINAL |
| Nominal Thread Size | 0.312 INCHES IN |
| Thread Series | UNF |
| Thread Quantity Per Inch | 24 |
| Nominal Tube Outside Diameter | 0.094 INCHES IN |
| Nut Style | TUBE COUPLING |
| Thread Direction | RIGHT-HAND |
| Width Across Flats | 0.375 INCHES NOMINAL IN |
| Nut Height | 0.469 INCHES NOMINAL IN |
| Thread Class | 3B |
| Fabrication Method | MACHINED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| B3312 PRIMARY | Bijur Lubricating Corp (USA) |
NSN 4730-00-431-6343 is a Nut,tube Coupling, manufactured by Bijur Lubricating Corp, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-431-6343 has 1 cross-referenced part number: B3312 (Bijur Lubricating Corp).
There are 3 known substitutes for 4730-00-431-6343: 3110-00-100-0340, 1680-01-062-2078, 7025-01-599-2743. Verify interchangeability with system specifications before substitution.
Key specifications for B3312: Material: STEEL OVERALL; Seat Angle: 25.00 DEGREES NOMINAL; Nominal Thread Size: 0.312 INCHES IN; Thread Series: UNF. 12 total characteristics are documented in the Federal Logistics Information System.