PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFB575TYPE3GR1Bolt,machine

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5306-00-297-8757 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-297-8757 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-297-8757. Primary manufacturer part number: FFB575TYPE3GR1.
Features
  • Bolt,machine — FSC 5306
  • Thread Quantity Per Inch: 24
  • Surface Treatment: CADMIUM OVERALL
  • Nominal Thread Diameter: 0.312 INCHES IN
  • Nondefinitive Spec/std Data: 3 TYPE AND 1 GRADE
  • Width Between Flats: 0.500 INCHES NOMINAL IN
  • Head Height: 0.203 INCHES NOMINAL IN
  • Minimum Tensile Strength: 55000 POUNDS PER SQUARE INCH LBS
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 5306-00-297-8757, 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 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-297-8757
Primary Part NumberFFB575TYPE3GR1
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Thread Quantity Per Inch24
Surface TreatmentCADMIUM OVERALL
Nominal Thread Diameter0.312 INCHES IN
Nondefinitive Spec/std Data3 TYPE AND 1 GRADE
Width Between Flats0.500 INCHES NOMINAL IN
Head Height0.203 INCHES NOMINAL IN
Minimum Tensile Strength55000 POUNDS PER SQUARE INCH LBS
Thread Class2A A
Head StyleHEXAGON
Features ProvidedFINISHED HEAD
Thread Length0.875 INCHES MINIMUM IN
Grip Length1.125 INCHES NOMINAL IN
Hardness Rating95.5 ROCKWELL B NOMINAL OVERALL
Fastener Length2.000 INCHES NOMINAL IN
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CH C FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL OVERALL
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5306-00-141-2883FF-B-575,TYII,GR1 SUCCESSOR
Bolt,machine
Defense Logistics Agency Dba Defense Supply Center Philadelphia
Bolt,machine
5306-00-141-2843 INTERCHANGEABLE
Bolt,machine
5306-00-141-2891 INTERCHANGEABLE
Bolt,machine
5306-00-141-293092765 INTERCHANGEABLE
Bolt,machine
Briggs and Stratton Corp
5306-00-297-872192125 INTERCHANGEABLE
Bolt,machine
Briggs and Stratton Corp
5306-00-637-8797 INTERCHANGEABLE
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
FFB575TYPE3GR1 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5306-00-141-2883SUCCESSOR
BOLT,MACHINE
FF-B-575,TYII,GR1
5306-00-680-7219SUCCESSOR
BOLT,MACHINE
5306-00-141-2843INTERCHANGEABLE
BOLT,MACHINE
5306-00-141-2891INTERCHANGEABLE
BOLT,MACHINE
5306-00-141-2930INTERCHANGEABLE
BOLT,MACHINE
92765
5306-00-297-8721INTERCHANGEABLE
BOLT,MACHINE
92125
5306-00-637-8797INTERCHANGEABLE
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-00-297-8757?

NSN 5306-00-297-8757 is a Bolt,machine, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-297-8757?

NSN 5306-00-297-8757 has 1 cross-referenced part number: FFB575TYPE3GR1 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5306-00-297-8757?

There are 7 known substitutes for 5306-00-297-8757: 5306-00-141-2883, 5306-00-680-7219, 5306-00-141-2843 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FFB575TYPE3GR1?

Key specifications for FFB575TYPE3GR1: Thread Quantity Per Inch: 24; Surface Treatment: CADMIUM OVERALL; Nominal Thread Diameter: 0.312 INCHES IN; Nondefinitive Spec/std Data: 3 TYPE AND 1 GRADE. 18 total characteristics are documented in the Federal Logistics Information System.

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