The Bolt,machine, cataloged under National Stock Number 5306-00-973-5256, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Crane Co Div Valve Div. Government technical data includes 15 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-973-5256 |
| Primary Part Number | 1-4 20X1IN |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Crane Co Div Valve Div |
| Status | ACTIVE |
| Minimum Tensile Strength | 60000 POUNDS PER SQUARE INCH LBS |
| Head Style | SQUARE |
| Thread Quantity Per Inch | 20 |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Material | STEEL OVERALL |
| Features Provided | UNFINISHED HEAD AND HEX NUT |
| Thread Length | 0.750 INCHES MINIMUM IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2A A |
| Fastener Length | 1.000 INCHES NOMINAL IN |
| Grip Length | 0.250 INCHES NOMINAL IN |
| Width Between Flats | 0.362 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A107 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Height | 0.156 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| Successor | 5306-00-207-5904 (14201) |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1-4 20X1IN | Crane Co Div Valve Div (USA) |
| 1/4-20-1 | Ducommun Metals Co (USA) |
NSN 5306-00-973-5256 is a Bolt,machine, manufactured by Crane Co Div Valve Div, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-973-5256 has 2 cross-referenced part numbers: 1-4 20X1IN (Crane Co Div Valve Div), 1/4-20-1 (Ducommun Metals Co).
There are 11 known substitutes for 5306-00-973-5256: 5306-00-207-5904, 5330-00-125-7180, 2530-00-383-4834 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1-4 20X1IN: Minimum Tensile Strength: 60000 POUNDS PER SQUARE INCH LBS; Head Style: SQUARE; Thread Quantity Per Inch: 20; Nominal Thread Diameter: 0.250 INCHES IN. 15 total characteristics are documented in the Federal Logistics Information System.