The Stud,ball, cataloged under National Stock Number 5307-01-389-3445, is classified within Federal Supply Class 5307 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Knappco Corporation Dba Civacon. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-389-3445 |
| Primary Part Number | 7523 |
| Item Name | Stud,ball |
| FSC / FSG | 5307 / 53 — No Item Name Available |
| Manufacturer | Knappco Corporation Dba Civacon |
| Status | ACTIVE |
| Neck Diameter | 0.391 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED |
| Distance Across Flats | 0.625 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Thread Quantity Per Inch | 16 LOCATION NOT OTHERWISE SPECIFIED |
| Nominal Thread Size | 0.375 INCHES LOCATION NOT OTHERWISE SPECIFIED IN |
| Distance From Spherical Head Centerline to Head End | 0.312 INCHES NOMINAL IN |
| Style Designator | BALL |
| Thread Class | 2A LOCATION NOT OTHERWISE SPECIFIED A |
| Thread Length | 0.875 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Furnished Items and Quantity | 0NE SPRING LOCK 3/8 IN. WASHER, STL, PLTD; ONE NUT, HEX, 3/8-16 UNC-2B, STL, PLTD IN |
| Material | COPPER ALLOY AND STEEL |
| Head Diameter | 0.625 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5307-01-389-3445 is a Stud,ball, manufactured by Knappco Corporation Dba Civacon, classified under FSC 5307 (No Item Name Available). Status: active.
NSN 5307-01-389-3445 has 2 cross-referenced part numbers: 277A-20 (Isometrics Inc), 7523 (Knappco Corporation Dba Civacon).
There are 10 known substitutes for 5307-01-389-3445: 6920-00-107-1744, 3110-00-156-1731, 5935-00-178-8069 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 7523: Neck Diameter: 0.391 INCHES NOMINAL IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED; Distance Across Flats: 0.625 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED. 14 total characteristics are documented in the Federal Logistics Information System.