PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FF-S-85CBolt,machine

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5306-00-272-4229 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-272-4229 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-272-4229. Primary manufacturer part number: FF-S-85C.
Features
  • Bolt,machine — FSC 5306
  • Thread Quantity Per Inch: 13
  • Thread Class: 2A A
  • Fastener Length: 4.250 INCHES NOMINAL IN
  • Width Between Flats: 1.000 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Head Height: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1035 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-272-4229, 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 4 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
NSN5306-00-272-4229
Primary Part NumberFF-S-85C
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Thread Quantity Per Inch13
Thread Class2A A
Fastener Length4.250 INCHES NOMINAL IN
Width Between Flats1.000 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
Hardness Rating32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Head Height0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL COMP 1035 OVERALL
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE AND 8 GRADE
Thread Length1.250 INCHES MINIMUM IN
Nominal Thread Diameter0.500 INCHES IN
Features ProvidedFINISHED HEAD
Thread DirectionRIGHT-HAND
Head StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5306-00-225-8516MS90725-52 SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5306-00-225-9095MS90726-40 SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5306-00-226-4824AEB02C312625WA6AA1 SUCCESSOR
Bolt,machine
The American Society of Mechanical Engineers
5306-00-226-4838AEB02C312C25AW9A91 SUCCESSOR
Bolt,machine
The American Society of Mechanical Engineers
5306-00-226-4840B1821BH031C375N SUCCESSOR
Bolt,machine
American National Standards Institute Incorporated Dba American National Standards Institute
Bolt,machine
5306-00-469-0516000-14671PC60 SUCCESSOR
Bolt,machine
Sparling Instruments, Incorporated
5306-00-050-1237AEB02F312625AW9A91 SUCCESSOR
Bolt,machine
The American Society of Mechanical Engineers
5306-00-051-4086B1821BH031F300N SUCCESSOR
Bolt,machine
American National Standards Institute Incorporated Dba American National Standards Institute
5306-00-051-4087AEB02F312C25AW9A91 SUCCESSOR
Bolt,machine
The American Society of Mechanical Engineers
Cross-Reference Index
Part NumberManufacturer
FF-S-85C Federal Specifications Promulgated by General Services Administration Washington DC (USA)
1D4569 Zf Industrieantriebe Witten Gmbh (DEU)
FF-S-85 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
1D569 Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
5306-00-225-8516SUCCESSOR
BOLT,MACHINE
MS90725-52
5306-00-225-9095SUCCESSOR
BOLT,MACHINE
MS90726-40
5306-00-226-4824SUCCESSOR
BOLT,MACHINE
AEB02C312625WA6AA1
5306-00-226-4838SUCCESSOR
BOLT,MACHINE
AEB02C312C25AW9A91
5306-00-226-4840SUCCESSOR
BOLT,MACHINE
B1821BH031C375N
5306-00-270-8275SUCCESSOR
BOLT,MACHINE
5306-00-469-0516SUCCESSOR
BOLT,MACHINE
000-14671PC60
5306-00-050-1237SUCCESSOR
BOLT,MACHINE
AEB02F312625AW9A91
5306-00-051-4086SUCCESSOR
BOLT,MACHINE
B1821BH031F300N
5306-00-051-4087SUCCESSOR
BOLT,MACHINE
AEB02F312C25AW9A91
5306-00-051-4091SUCCESSOR
BOLT,MACHINE
B1821BH031F425N
5306-00-051-4092SUCCESSOR
BOLT,MACHINE
B1821BH031F450N

Frequently Asked Questions

What is NSN 5306-00-272-4229?

NSN 5306-00-272-4229 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 5306-00-272-4229?

NSN 5306-00-272-4229 has 4 cross-referenced part numbers: FF-S-85C (Federal Specifications Promulgated by General Services Administration Washington DC), 1D4569 (Zf Industrieantriebe Witten Gmbh), FF-S-85 (Federal Specifications Promulgated by General Services Administration Washington DC), 1D569 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5306-00-272-4229?

There are 12 known substitutes for 5306-00-272-4229: 5306-00-225-8516, 5306-00-225-9095, 5306-00-226-4824 and 9 more. Verify interchangeability with system specifications before substitution.

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

Key specifications for FF-S-85C: Thread Quantity Per Inch: 13; Thread Class: 2A A; Fastener Length: 4.250 INCHES NOMINAL IN; Width Between Flats: 1.000 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN. 15 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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