PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFB571Bolt,machine

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5306-00-582-5952 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-582-5952 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-582-5952. Primary manufacturer part number: FFB571.
Features
  • Bolt,machine — FSC 5306
  • Minimum Yield Strength: 75000 POUNDS PER SQUARE INCH LBS
  • Material: STEEL OVERALL
  • Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
  • Thread Length: 1.094 INCHES MINIMUM IN
  • Width Between Flats: 0.750 INCHES NOMINAL IN
  • Head Height: 0.375 INCHES NOMINAL IN
  • Fastener Length: 1.500 INCHES NOMINAL 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 5306-00-582-5952, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5306-00-582-5952
Primary Part NumberFFB571
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Minimum Yield Strength75000 POUNDS PER SQUARE INCH LBS
MaterialSTEEL OVERALL
Hardness Rating30.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
Thread Length1.094 INCHES MINIMUM IN
Width Between Flats0.750 INCHES NOMINAL IN
Head Height0.375 INCHES NOMINAL IN
Fastener Length1.500 INCHES NOMINAL IN
Thread Quantity Per Inch13
Head StyleHEXAGON
Nominal Thread Diameter0.500 INCHES IN
Thread DirectionRIGHT-HAND
Features ProvidedUNFINISHED HEAD
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Class2A A
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5306-00-059-1224
HAZMATNo
Verified Substitutes 12
No Item Name Available
Bolt,square Neck
Bolt,square Neck
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
5306-00-206-4789101-2S8-17 SUCCESSOR
Bolt,machine
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Bolt,machine
Bolt,square Neck
Cross-Reference Index
Part NumberManufacturer
FFB571 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
426204 Wabco Construction and Mining Equipment Group Indianapolis Plant an American Standard Inc Co (USA)
Related Parts
SUCCESSOR 5306-00-059-1224 Bolt,square Neck
5306-00-263-7461SUCCESSOR
NO ITEM NAME AVAILABLE
5306-00-059-1225SUCCESSOR
BOLT,SQUARE NECK
5306-00-151-1904SUCCESSOR
BOLT,MACHINE
5306-00-151-3464SUCCESSOR
BOLT,MACHINE
5306-00-151-3476SUCCESSOR
BOLT,MACHINE
5306-00-177-5675SUCCESSOR
BOLT,MACHINE
5306-00-206-4789SUCCESSOR
BOLT,MACHINE
101-2S8-17
5306-00-207-3293SUCCESSOR
BOLT,MACHINE
5306-00-207-4612SUCCESSOR
BOLT,SQUARE NECK
5306-00-207-4660SUCCESSOR
BOLT,SQUARE NECK
5306-00-208-2091SUCCESSOR
BOLT,SQUARE NECK

Frequently Asked Questions

What is NSN 5306-00-582-5952?

NSN 5306-00-582-5952 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 5306-00-582-5952?

NSN 5306-00-582-5952 has 2 cross-referenced part numbers: FFB571 (Federal Specifications Promulgated by General Services Administration Washington DC), 426204 (Wabco Construction and Mining Equipment Group Indianapolis Plant an American Standard Inc Co).

What NSN replaces 5306-00-582-5952?

There are 12 known substitutes for 5306-00-582-5952: 5306-00-263-7461, 5306-00-059-1224, 5306-00-059-1225 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FFB571?

Key specifications for FFB571: Minimum Yield Strength: 75000 POUNDS PER SQUARE INCH LBS; Material: STEEL OVERALL; Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL; Thread Length: 1.094 INCHES MINIMUM IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-582-5952 still in active supply?

NSN 5306-00-582-5952 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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