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Technical Data Sheet
PartsTable / COMPONENT / FF-B-575 TY1CL2
FF-B-575 TY1CL2 ✓ 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: SQUARE, grip_length: 3.750 INCHES NOMINAL IN, head_height: 0.308 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.250 INCHES MINIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-514-9536, 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 TY1CL2
NSN: 5306-00-514-9536
FSC: 5306
CAGE: 80244 — GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleSQUARE
grip_length3.750 INCHES NOMINAL IN
head_height0.308 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
thread_class2A A
thread_length1.250 INCHES MINIMUM IN
fastener_length5.000 INCHES NOMINAL IN
hardness_rating81.7 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedUNFINISHED HEAD
width_between_flats0.725 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
minimum_yield_strength36000 POUNDS PER SQUARE INCH LBS
NSN5306-00-514-9536
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: FF-B-575 TY1CL2 · 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
•
WIDTH BETWEEN FLATS: 0.725 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
•
FEATURES PROVIDED: UNFINISHED HEAD
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
HEAD HEIGHT: 0.308 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
•
FASTENER LENGTH: 5.000 INCHES NOMINAL IN
•
GRIP LENGTH: 3.750 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
MINIMUM YIELD STRENGTH: 36000 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH BETWEEN FLATS0.725 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
FEATURES PROVIDEDUNFINISHED HEAD
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD HEIGHT0.308 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
FASTENER LENGTH5.000 INCHES NOMINAL IN
GRIP LENGTH3.750 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
MINIMUM YIELD STRENGTH36000 POUNDS PER SQUARE INCH LBS
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J429 GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING81.7 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
111195Upgraded Successor
successor cross-reference
successor
FF-B-575Upgraded Successor
successor cross-reference
successor
V80AUpgraded Successor
successor cross-reference
successor
1103024Upgraded Successor
successor cross-reference
successor
0904935-4Upgraded Successor
successor cross-reference
successor
MS35355-127Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-B-575 TY1CL2?
FF-B-575 TY1CL2 is a BOLT,MACHINE.
What parts can replace FF-B-575 TY1CL2?
There are 20 known substitutes for FF-B-575 TY1CL2: 111195, FF-B-575, V80A and 17 more. Substitute compatibility should be verified for your specific system.
Is FF-B-575 TY1CL2 still available?
FF-B-575 TY1CL2 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026