PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FF-B-575Bolt,machine

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5306-00-884-8785 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-884-8785 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-884-8785. Primary manufacturer part number: FF-B-575.
Features
  • Bolt,machine — FSC 5306
  • Thread Direction: RIGHT-HAND
  • Fastener Length: 1.210 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
  • Thread Length: 0.875 INCHES MINIMUM IN
  • Surface Treatment Document and Classification: ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
  • Minimum Yield Strength: 36000 POUNDS PER SQUARE INCH LBS
  • Surface Treatment: ZINC OVERALL
  • Hardness Rating: 70.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM 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 5306-00-884-8785, 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 5 commercial cross-references from 5 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
NSN5306-00-884-8785
Primary Part NumberFF-B-575
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Thread DirectionRIGHT-HAND
Fastener Length1.210 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
Thread Length0.875 INCHES MINIMUM IN
Surface Treatment Document and ClassificationASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Minimum Yield Strength36000 POUNDS PER SQUARE INCH LBS
Surface TreatmentZINC OVERALL
Hardness Rating70.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
Nominal Thread Diameter0.312 INCHES IN
Thread Quantity Per Inch18
MaterialSTEEL OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Class2A A
Material Document and ClassificationSAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Features ProvidedFINISHED HEAD
Head StyleSQUARE
Minimum Tensile Strength60000 POUNDS PER SQUARE INCH LBS
Head Height0.186 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
Width Between Flats0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
No Item Name Available
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
Cross-Reference Index
Part NumberManufacturer
FF-B-575 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
FF-B-575 TY1 General Services Administration Federal Supply Service (USA)
MS35355-34 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
B18.2.1 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
5-16 18X1 1-4IN Gage Co the (USA)
Related Parts
5306-00-973-7499SUCCESSOR
NO ITEM NAME AVAILABLE
5306-00-011-1195SUCCESSOR
BOLT,MACHINE
5306-00-013-1303SUCCESSOR
BOLT,MACHINE
5306-00-018-6682SUCCESSOR
BOLT,MACHINE
5306-00-019-1846SUCCESSOR
BOLT,MACHINE
5306-00-019-1857SUCCESSOR
BOLT,MACHINE
5306-00-042-6920SUCCESSOR
BOLT,MACHINE
5306-00-042-6922SUCCESSOR
BOLT,MACHINE
426922
5306-00-042-6923SUCCESSOR
BOLT,MACHINE
5306-00-042-6934SUCCESSOR
BOLT,MACHINE
5306-00-042-6936SUCCESSOR
BOLT,MACHINE
5306-00-042-6937SUCCESSOR
BOLT,MACHINE
426937

Frequently Asked Questions

What is NSN 5306-00-884-8785?

NSN 5306-00-884-8785 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 5306-00-884-8785?

NSN 5306-00-884-8785 has 5 cross-referenced part numbers: FF-B-575 (Federal Specifications Promulgated by General Services Administration Washington DC), FF-B-575 TY1 (General Services Administration Federal Supply Service), MS35355-34 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), B18.2.1 (American National Standards Institute Incorporated Dba American National Standards Institute), 5-16 18X1 1-4IN (Gage Co the).

What NSN replaces 5306-00-884-8785?

There are 12 known substitutes for 5306-00-884-8785: 5306-00-973-7499, 5306-00-011-1195, 5306-00-013-1303 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FF-B-575?

Key specifications for FF-B-575: Thread Direction: RIGHT-HAND; Fastener Length: 1.210 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN; Thread Length: 0.875 INCHES MINIMUM IN; Surface Treatment Document and Classification: ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-884-8785 still in active supply?

NSN 5306-00-884-8785 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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