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PartsTable / COMPONENT / FFB571ATYPEC2
FFB571ATYPEC2 ✓ 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,SQUARE NECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: BUTTON, neck_width: 0.190 INCHES NOMINAL IN, head_height: 0.094 INCHES NOMINAL IN, neck_length: 0.188 INCHES NOMINAL IN, thread_class: 2A A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-514-8308, 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
FFB571ATYPEC2
NSN: 5306-00-514-8308
FSC: 5306
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleBUTTON
neck_width0.190 INCHES NOMINAL IN
head_height0.094 INCHES NOMINAL IN
neck_length0.188 INCHES NOMINAL IN
thread_class2A A
head_diameter0.438 INCHES NOMINAL IN
thread_length0.375 INCHES MINIMUM IN
fastener_length0.625 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedSQUARE NUT
nominal_thread_diameter0.190 INCHES IN
NSN5306-00-514-8308
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: FFB571ATYPEC2 · 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
•
THREAD QUANTITY PER INCH: 24
•
FASTENER LENGTH: 0.625 INCHES NOMINAL IN
•
NECK LENGTH: 0.188 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: FF-B-571 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NONDEFINITIVE SPEC/STD DATA: C2 TYPE AND C CLASS
•
MINIMUM TENSILE STRENGTH: 48000 POUNDS PER SQUARE INCH LBS
•
THREAD LENGTH: 0.375 INCHES MINIMUM IN
•
NECK WIDTH: 0.190 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH24
FASTENER LENGTH0.625 INCHES NOMINAL IN
NECK LENGTH0.188 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONFF-B-571 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATAC2 TYPE AND C CLASS
MINIMUM TENSILE STRENGTH48000 POUNDS PER SQUARE INCH LBS
THREAD LENGTH0.375 INCHES MINIMUM IN
NECK WIDTH0.190 INCHES NOMINAL IN
HEAD DIAMETER0.438 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
70-8-90Interchangeable
interchangeable cross-reference
interchangeable
FFB571ATYPEC2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FFB571ATYPEC2?
FFB571ATYPEC2 is a BOLT,SQUARE NECK.
What parts can replace FFB571ATYPEC2?
There are 2 known substitutes for FFB571ATYPEC2: 70-8-90, FFB571ATYPEC2. Substitute compatibility should be verified for your specific system.
What is the NSN for FFB571ATYPEC2?
FFB571ATYPEC2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-514-8308. 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