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PartsTable / COMPONENT / FF-B-575 TYPE II GRADE 1
FF-B-575 TYPE II GRADE 1 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.369 INCHES MINIMUM AND 0.413 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.500 INCHES MINIMUM IN, fastener_length: 6.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-282-4269, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
FF-B-575 TYPE II GRADE 1
NSN: 5306-00-282-4269
FSC: 5306
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.369 INCHES MINIMUM AND 0.413 INCHES MAXIMUM IN
thread_class2A A
thread_length1.500 INCHES MINIMUM IN
fastener_length6.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
surface_treatmentCADMIUM OR ZINC OVERALL
width_between_flats0.906 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
nominal_thread_diameter0.625 INCHES IN
minimum_tensile_strength48000 POUNDS PER SQUARE INCH LBS
NSN5306-00-282-4269
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: FF-B-575 TYPE II GRADE 1 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.369 INCHES MINIMUM AND 0.413 INCHES MAXIMUM IN
•
FEATURES PROVIDED: FINISHED HEAD
•
FASTENER LENGTH: 6.500 INCHES NOMINAL IN
•
WIDTH BETWEEN FLATS: 0.906 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
•
THREAD LENGTH: 1.500 INCHES MINIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
MINIMUM TENSILE STRENGTH: 48000 POUNDS PER SQUARE INCH LBS
•
THREAD QUANTITY PER INCH: 11
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.369 INCHES MINIMUM AND 0.413 INCHES MAXIMUM IN
FEATURES PROVIDEDFINISHED HEAD
FASTENER LENGTH6.500 INCHES NOMINAL IN
WIDTH BETWEEN FLATS0.906 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
THREAD LENGTH1.500 INCHES MINIMUM IN
THREAD DIRECTIONRIGHT-HAND
MINIMUM TENSILE STRENGTH48000 POUNDS PER SQUARE INCH LBS
THREAD QUANTITY PER INCH11
THREAD CLASS2A A
HEAD STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
60-10-30Upgraded Successor
successor cross-reference
successor
FFB571ANDCLASSCUpgraded Successor
successor cross-reference
successor
60-10-24Upgraded Successor
successor cross-reference
successor
60-10-22Upgraded Successor
successor cross-reference
successor
60-6-22Upgraded Successor
successor cross-reference
successor
60-6-24Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-B-575 TYPE II GRADE 1?
FF-B-575 TYPE II GRADE 1 is a BOLT,MACHINE.
What parts can replace FF-B-575 TYPE II GRADE 1?
There are 14 known substitutes for FF-B-575 TYPE II GRADE 1: 60-10-30, FFB571ANDCLASSC, 60-10-24 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-B-575 TYPE II GRADE 1?
FF-B-575 TYPE II GRADE 1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-282-4269. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026