The Bolt,square Neck, cataloged under National Stock Number 5306-00-058-0518, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5306-00-058-0518 |
| Primary Part Number | FF-B-584 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | CANCELLED |
| Material | STEEL OVERALL |
| Head Height | 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN |
| Material Document and Classification | ASME-B18 GRADE 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Neck Length | 0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Surface Treatment | ZINC OVERALL |
| Neck Width | 0.307 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Style | ROUND |
| Fastener Length | 3.500 INCHES NOMINAL IN |
| Head Diameter | 0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Surface Treatment Document and Classification | ASTM-B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Quantity Per Inch | 18 |
| Hardness Rating | 95.0 ROCKWELL B MAXIMUM OVERALL |
| Thread Direction | RIGHT-HAND |
| Thread Length | 0.874 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FF-B-584 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| ASME-B18.5 | The American Society of Mechanical Engineers (USA) |
| FF-B-584 TY1CL1STAGR1 | General Services Administration Federal Supply Service (USA) |
| B18.5 | American National Standards Institute Incorporated Dba American National Standards Institute (USA) |
| MS35751-51 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| NASM35751 | Aerospace Industries Association of America Inc |
NSN 5306-00-058-0518 is a Bolt,square Neck, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5306 (No Item Name Available). Status: cancelled.
NSN 5306-00-058-0518 has 6 cross-referenced part numbers: FF-B-584 (Federal Specifications Promulgated by General Services Administration Washington DC), ASME-B18.5 (The American Society of Mechanical Engineers), FF-B-584 TY1CL1STAGR1 (General Services Administration Federal Supply Service), B18.5 (American National Standards Institute Incorporated Dba American National Standards Institute), MS35751-51 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.
There are 12 known substitutes for 5306-00-058-0518: 5306-00-010-9115, 5306-00-012-0955, 5306-00-012-6227 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for FF-B-584: Material: STEEL OVERALL; Head Height: 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN; Material Document and Classification: ASME-B18 GRADE 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Minimum Tensile Strength: 55000 POUNDS PER SQUARE INCH LBS. 18 total characteristics are documented in the Federal Logistics Information System.
NSN 5306-00-058-0518 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.