The Bolt,square Neck, cataloged under National Stock Number 5306-01-656-6713, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Star Stainless Screw Co. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-656-6713 |
| Primary Part Number | 2-CB-25C-75 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Star Stainless Screw Co |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Thread Quantity Per Inch | 20 |
| Thread Class | 2A A |
| Thread Length | 0.594 INCHES NOMINAL IN |
| Neck Width | 0.26 INCHES NOMINAL IN |
| Head Diameter | 0.594 INCHES NOMINAL IN |
| Fastener Length | 0.75 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Height | 0.145 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.25 INCHES IN |
| Neck Length | 0.156 INCHES NOMINAL IN |
| Head Style | ROUND |
| Material | STEEL COMP 316 OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| ANSI B18-5 | The American Society of Mechanical Engineers (USA) |
| 93180A210 | Mcmaster-Carr Supply Co (USA) |
| 2-CB-25C-75 PRIMARY | Star Stainless Screw Co (USA) |
NSN 5306-01-656-6713 is a Bolt,square Neck, manufactured by Star Stainless Screw Co, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-01-656-6713 has 3 cross-referenced part numbers: ANSI B18-5 (The American Society of Mechanical Engineers), 93180A210 (Mcmaster-Carr Supply Co), 2-CB-25C-75 (Star Stainless Screw Co).
There are 7 known substitutes for 5306-01-656-6713: 5306-00-078-9696, 5306-00-089-0174, 5306-00-089-0176 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2-CB-25C-75: Thread Direction: RIGHT-HAND; Thread Quantity Per Inch: 20; Thread Class: 2A A; Thread Length: 0.594 INCHES NOMINAL IN. 15 total characteristics are documented in the Federal Logistics Information System.