PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B18.2.1Bolt,machine

American National Standards Institute Incorporated Dba American National Standards Institute · NSN 5306-00-514-7880 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-514-7880 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-514-7880. Primary manufacturer part number: B18.2.1.
Features
  • Bolt,machine — FSC 5306
  • Thread Direction: RIGHT-HAND
  • Material: STEEL OVERALL
  • Thread Class: 2A A
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Nondefinitive Spec/std Data: 1 TYPE
  • Minimum Yield Strength: 36000 POUNDS PER SQUARE INCH LBS
  • Material Document and Classification: SAEJ429GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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 5306-00-514-7880, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is American National Standards Institute Incorporated Dba American National Standards Institute. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-514-7880
Primary Part NumberB18.2.1
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerAmerican National Standards Institute Incorporated Dba American National Standards Institute
StatusACTIVE
Thread DirectionRIGHT-HAND
MaterialSTEEL OVERALL
Thread Class2A A
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nondefinitive Spec/std Data1 TYPE
Minimum Yield Strength36000 POUNDS PER SQUARE INCH LBS
Material Document and ClassificationSAEJ429GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Hardness Rating70.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
Thread Quantity Per Inch18
Features ProvidedUNFINISHED HEAD
Head StyleSQUARE
Nominal Thread Diameter0.312 INCHES IN
Width Between Flats0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Head Height0.186 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
Thread Length0.875 INCHES MINIMUM IN
Minimum Tensile Strength60000 POUNDS PER SQUARE INCH LBS
Fastener Length1.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
5306-00-042-6922426922 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Bolt,machine
Bolt,machine
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
B18.2.1 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
FF-B-575 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
FF-B-575 TY1 General Services Administration Federal Supply Service (USA)
Related Parts
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426937
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BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-00-514-7880?

NSN 5306-00-514-7880 is a Bolt,machine, manufactured by American National Standards Institute Incorporated Dba American National Standards Institute, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-514-7880?

NSN 5306-00-514-7880 has 3 cross-referenced part numbers: B18.2.1 (American National Standards Institute Incorporated Dba American National Standards Institute), FF-B-575 (Federal Specifications Promulgated by General Services Administration Washington DC), FF-B-575 TY1 (General Services Administration Federal Supply Service).

What NSN replaces 5306-00-514-7880?

There are 12 known substitutes for 5306-00-514-7880: 5306-00-011-1195, 5306-00-013-1303, 5306-00-018-6682 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B18.2.1?

Key specifications for B18.2.1: Thread Direction: RIGHT-HAND; Material: STEEL OVERALL; Thread Class: 2A A; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 17 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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