PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FF-B-575Bolt,machine

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5306-00-043-2755 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-043-2755 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-043-2755. Primary manufacturer part number: FF-B-575.
Features
  • Bolt,machine — FSC 5306
  • Minimum Tensile Strength: 55000 POUNDS PER SQUARE INCH LBS
  • Thread Quantity Per Inch: 10
  • Thread Class: 2A A
  • Thread Direction: RIGHT-HAND
  • Features Provided: UNFINISHED HEAD
  • Width Between Flats: 1.088 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.750 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-043-2755, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 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.

Technical Specifications
ParameterValue
NSN5306-00-043-2755
Primary Part NumberFF-B-575
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Minimum Tensile Strength55000 POUNDS PER SQUARE INCH LBS
Thread Quantity Per Inch10
Thread Class2A A
Thread DirectionRIGHT-HAND
Features ProvidedUNFINISHED HEAD
Width Between Flats1.088 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
Nominal Thread Diameter0.750 INCHES IN
Surface Treatment Document and ClassificationQQ-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 Height0.476 INCHES MINIMUM AND 0.524 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Surface TreatmentCADMIUM OR ZINC OVERALL
Material Document and ClassificationFF-B-575,GR 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Hardness Rating95.0 ROCKWELL B MAXIMUM OVERALL
Grip Length0.750 INCHES NOMINAL IN
Nondefinitive Spec/std Data1 TYPE AND 1 GRADE
MaterialSTEEL OVERALL
Fastener Length2.500 INCHES NOMINAL IN
Thread Length1.750 INCHES MINIMUM IN
Head StyleSQUARE
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5306-00-010-2484 (102484)
HAZMATNo
Verified Substitutes 12
5306-00-010-2484102484 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Bolt,machine
5306-00-010-9177109177 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Bolt,machine
Bolt,machine
Bolt,machine
5306-00-019-0882190882 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Bolt,machine
Bolt,machine
5306-00-042-6921426921 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Cross-Reference Index
Part NumberManufacturer
FF-B-575 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
70B3103210-110 General Dynamics Mission Systems, Inc. (USA)
MS35355-194 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FF-B-575 TY1 General Services Administration Federal Supply Service (USA)
24-026 Tennessee Valley Authority (USA)
3-4 10X2 1-2IN Gage Co the (USA)
70B3103210-110 General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems (USA)
432755 General Motors Corp (USA)
Related Parts
SUCCESSOR 5306-00-010-2484 Bolt,machine · 102484
5306-00-010-2495SUCCESSOR
BOLT,MACHINE
5306-00-010-9177SUCCESSOR
BOLT,MACHINE
109177
5306-00-010-9191SUCCESSOR
BOLT,MACHINE
5306-00-013-1286SUCCESSOR
BOLT,MACHINE
5306-00-018-7532SUCCESSOR
BOLT,MACHINE
5306-00-019-0882SUCCESSOR
BOLT,MACHINE
190882
5306-00-021-7840SUCCESSOR
BOLT,MACHINE
5306-00-021-8057SUCCESSOR
BOLT,MACHINE
5306-00-042-6921SUCCESSOR
BOLT,MACHINE
426921
5306-00-042-6924SUCCESSOR
BOLT,MACHINE
5306-00-042-6926SUCCESSOR
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-00-043-2755?

NSN 5306-00-043-2755 is a Bolt,machine, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-043-2755?

NSN 5306-00-043-2755 has 8 cross-referenced part numbers: FF-B-575 (Federal Specifications Promulgated by General Services Administration Washington DC), 70B3103210-110 (General Dynamics Mission Systems, Inc.), MS35355-194 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FF-B-575 TY1 (General Services Administration Federal Supply Service), 24-026 (Tennessee Valley Authority) and 3 more.

What NSN replaces 5306-00-043-2755?

There are 12 known substitutes for 5306-00-043-2755: 5306-00-010-2484, 5306-00-010-2495, 5306-00-010-9177 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FF-B-575?

Key specifications for FF-B-575: Minimum Tensile Strength: 55000 POUNDS PER SQUARE INCH LBS; Thread Quantity Per Inch: 10; Thread Class: 2A A; Thread Direction: RIGHT-HAND. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-043-2755 still in active supply?

NSN 5306-00-043-2755 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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