The Bolt,square Neck, cataloged under National Stock Number 5306-00-089-1425, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 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 | 5306-00-089-1425 |
| Primary Part Number | MS35751-137 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| Status | CANCELLED |
| Material Document and Classification | SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Material | STEEL OVERALL |
| Fastener Length | 4.900 INCHES MINIMUM AND 5.100 INCHES MAXIMUM IN |
| Hardness Rating | 95.0 ROCKWELL B MAXIMUM OVERALL |
| Neck Width | 0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 13 |
| Thread Length | 1.250 INCHES MINIMUM IN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment Document and Classification | ASTM-B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Head Style | ROUND |
| Neck Length | 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Surface Treatment | ZINC OVERALL |
| Head Height | 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| Successor | 5306-00-043-4568 (H2212PC9) |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS35751-137 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| FF-B-584 TY1CL1STAGR1 | General Services Administration Federal Supply Service (USA) |
| FF-B-584 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 70-8-50 | Department of the Air Force (USA) |
| FFB5841-2-13X5INB0LTSQNECK | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| NASM35751 | Aerospace Industries Association of America Inc |
| B18.5 | American National Standards Institute Incorporated Dba American National Standards Institute (USA) |
| MIL-B-857 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| ASME-B18.5 | The American Society of Mechanical Engineers (USA) |
NSN 5306-00-089-1425 is a Bolt,square Neck, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5306 (No Item Name Available). Status: cancelled.
NSN 5306-00-089-1425 has 9 cross-referenced part numbers: MS35751-137 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FF-B-584 TY1CL1STAGR1 (General Services Administration Federal Supply Service), FF-B-584 (Federal Specifications Promulgated by General Services Administration Washington DC), 70-8-50 (Department of the Air Force), FFB5841-2-13X5INB0LTSQNECK (Federal Specifications Promulgated by General Services Administration Washington DC) and 4 more.
There are 12 known substitutes for 5306-00-089-1425: 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 MS35751-137: Material Document and Classification: SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Material: STEEL OVERALL; Fastener Length: 4.900 INCHES MINIMUM AND 5.100 INCHES MAXIMUM IN; Hardness Rating: 95.0 ROCKWELL B MAXIMUM OVERALL. 18 total characteristics are documented in the Federal Logistics Information System.
NSN 5306-00-089-1425 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.