The Bolt,square Neck, cataloged under National Stock Number 5306-00-993-6257, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5306-00-993-6257 |
| Primary Part Number | MS35751-77 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use |
| Status | CANCELLED |
| Neck Width | 0.368 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN |
| Head Style | BUTTON |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Neck Length | 0.188 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Head Height | 0.188 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN |
| Fastener Length | 2.969 INCHES MINIMUM AND 3.031 INCHES MAXIMUM IN |
| Hardness Rating | 95.0 ROCKWELL B MAXIMUM OVERALL |
| Material Document and Classification | SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Diameter | 0.782 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 128714 | General Motors Llc Dba General Motors Llc (USA) |
| MS35751-77 PRIMARY | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA) |
| FFB571TYPEC2CLASSC | General Services Administration Federal Supply Service (USA) |
| 109118 | General Motors Corp (USA) |
| MS35751-77 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 109118 | General Motors Llc Dba General Motors Llc (USA) |
NSN 5306-00-993-6257 is a Bolt,square Neck, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5306 (No Item Name Available). Status: cancelled.
NSN 5306-00-993-6257 has 6 cross-referenced part numbers: 128714 (General Motors Llc Dba General Motors Llc), MS35751-77 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), FFB571TYPEC2CLASSC (General Services Administration Federal Supply Service), 109118 (General Motors Corp), MS35751-77 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.
There are 5 known substitutes for 5306-00-993-6257: 5306-00-208-2091, 5306-00-639-3314, 4130-00-735-7734 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for MS35751-77: Neck Width: 0.368 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN; Head Style: BUTTON; Surface Treatment: CADMIUM OR ZINC OVERALL; Neck Length: 0.188 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN. 13 total characteristics are documented in the Federal Logistics Information System.
NSN 5306-00-993-6257 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.