PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FF-S-85CBolt,machine

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5306-00-273-6379 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-273-6379 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-273-6379. Primary manufacturer part number: FF-S-85C.
Features
  • Bolt,machine — FSC 5306
  • Fastener Length: 1.500 INCHES NOMINAL IN
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
  • Head Height: 0.203 INCHES NOMINAL IN
  • Head Style: HEXAGON
  • Features Provided: FINISHED HEAD
  • Nominal Thread Diameter: 0.312 INCHES IN
  • Thread Direction: RIGHT-HAND
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 5306-00-273-6379, 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 15 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5306-00-273-6379
Primary Part NumberFF-S-85C
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Fastener Length1.500 INCHES NOMINAL IN
Hardness Rating32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
Head Height0.203 INCHES NOMINAL IN
Head StyleHEXAGON
Features ProvidedFINISHED HEAD
Nominal Thread Diameter0.312 INCHES IN
Thread DirectionRIGHT-HAND
MaterialSTEEL OVERALL
Thread Length1.000 INCHES MINIMUM IN
Minimum Yield Strength129000 POUNDS PER SQUARE INCH LBS
Thread Class3A A
Width Between Flats0.500 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE AND 8 GRADE
Thread Quantity Per Inch18
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
Bolt,machine
5306-01-448-3920MS35307-348 SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-226-4831AES01C312A50AW9A91 INTERCHANGEABLE
Screw,cap,hexagon Head
The American Society of Mechanical Engineers
5360-01-147-0054179822 INTERCHANGEABLE
Spring,helical,compression
Cummins Inc.
6640-01-271-9131 INTERCHANGEABLE
Rack,drain,glassware
5306-01-362-7329179822 INTERCHANGEABLE
Bolt,machine
Rolls-Royce Solutions America Inc
Cross-Reference Index
Part NumberManufacturer
FF-S-85C Federal Specifications Promulgated by General Services Administration Washington DC (USA)
91162 Briggs and Stratton Corp (USA)
179822 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
5306-00-272-4229SUCCESSOR
BOLT,MACHINE
5306-01-448-3920SUCCESSOR
BOLT,MACHINE
MS35307-348
5305-00-226-4831INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
AES01C312A50AW9A91
5360-01-147-0054INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
179822
6640-01-271-9131INTERCHANGEABLE
RACK,DRAIN,GLASSWARE
5306-01-362-7329INTERCHANGEABLE
BOLT,MACHINE
179822

Frequently Asked Questions

What is NSN 5306-00-273-6379?

NSN 5306-00-273-6379 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 5306-00-273-6379?

NSN 5306-00-273-6379 has 3 cross-referenced part numbers: FF-S-85C (Federal Specifications Promulgated by General Services Administration Washington DC), 91162 (Briggs and Stratton Corp), 179822 (Zf Industrieantriebe Witten Gmbh).

What NSN replaces 5306-00-273-6379?

There are 6 known substitutes for 5306-00-273-6379: 5306-00-272-4229, 5306-01-448-3920, 5305-00-226-4831 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FF-S-85C?

Key specifications for FF-S-85C: Fastener Length: 1.500 INCHES NOMINAL IN; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL; Head Height: 0.203 INCHES NOMINAL IN; Head Style: HEXAGON. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-273-6379 still in active supply?

NSN 5306-00-273-6379 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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