PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FF-B-575 TY1GR1Bolt,machine

General Services Administration Federal Supply Service · NSN 5306-00-959-7818 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-959-7818 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-959-7818. Primary manufacturer part number: FF-B-575 TY1GR1.
Features
  • Bolt,machine — FSC 5306
  • Thread Quantity Per Inch: 11
  • Thread Direction: RIGHT-HAND
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Length: 1.212 INCHES MINIMUM AND 1.540 INCHES MAXIMUM IN
  • Thread Class: 2A A
  • Minimum Tensile Strength: 60000 POUNDS PER SQUARE INCH LBS
  • Features Provided: FINISHED HEAD
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 5306-00-959-7818, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Services Administration Federal Supply Service. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 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
NSN5306-00-959-7818
Primary Part NumberFF-B-575 TY1GR1
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusCANCELLED
Thread Quantity Per Inch11
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Length1.212 INCHES MINIMUM AND 1.540 INCHES MAXIMUM IN
Thread Class2A A
Minimum Tensile Strength60000 POUNDS PER SQUARE INCH LBS
Features ProvidedFINISHED HEAD
Width Between Flats0.906 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
Nominal Thread Diameter0.625 INCHES IN
Head StyleSQUARE
Fastener Length1.440 INCHES MINIMUM AND 1.540 INCHES MAXIMUM IN
Material Document and ClassificationSAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentZINC OVERALL
Head Height0.400 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN
Hardness Rating70.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
MaterialSTEEL OVERALL
Surface Treatment Document and ClassificationASTM B633, CAGE81346 ASSN STD ALL TREATMENT RESPONSES OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5306-00-019-0882 (190882)
HAZMATNo
Verified Substitutes 12
Bolt,machine
Bolt,machine
Bolt,machine
5306-00-019-0882190882 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Bolt,machine
Bolt,machine
Bolt,machine
5306-00-042-6921426921 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
5306-00-042-6922426922 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
FF-B-575 TY1GR1 General Services Administration Federal Supply Service (USA)
MS35355-159 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FF-B-575 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
ASME B18.2.1 The American Society of Mechanical Engineers (USA)
5-8 11X1 1-2IN Gage Co the (USA)
B18.2.1 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
FF-B-575 TY1 General Services Administration Federal Supply Service (USA)
24-026 Tennessee Valley Authority (USA)
145-4510934-4A Rohr, Inc. Dba Rohr Industries Inc Div Rohr Inc., a Part of Collins Aerospace (USA)
Related Parts
SUCCESSOR 5306-00-019-0882 Bolt,machine · 190882
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
5306-00-042-6921SUCCESSOR
BOLT,MACHINE
426921
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

Frequently Asked Questions

What is NSN 5306-00-959-7818?

NSN 5306-00-959-7818 is a Bolt,machine, manufactured by General Services Administration Federal Supply Service, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-959-7818?

NSN 5306-00-959-7818 has 9 cross-referenced part numbers: FF-B-575 TY1GR1 (General Services Administration Federal Supply Service), MS35355-159 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FF-B-575 (Federal Specifications Promulgated by General Services Administration Washington DC), ASME B18.2.1 (The American Society of Mechanical Engineers), 5-8 11X1 1-2IN (Gage Co the) and 4 more.

What NSN replaces 5306-00-959-7818?

There are 12 known substitutes for 5306-00-959-7818: 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 FF-B-575 TY1GR1?

Key specifications for FF-B-575 TY1GR1: Thread Quantity Per Inch: 11; Thread Direction: RIGHT-HAND; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Thread Length: 1.212 INCHES MINIMUM AND 1.540 INCHES MAXIMUM IN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-959-7818 still in active supply?

NSN 5306-00-959-7818 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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