PartsTable
Technical Data Sheet
X3571 ✓ 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 SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8640 OVERALL, head_style: HEXAGON, head_height: 0.281 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 1.000 INCHES MINIMUM IN, fastener_length: 3.625 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 5305-00-350-7042, 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
X3571
NSN: 5305-00-350-7042
FSC: 5305
CAGE: 14351 — TELEDYNE CONTINENTAL MOTORS INDUSTRIAL PRODUCTS DIV TELEDYNE INDUSTRIES INC SUB OF TELEDYNE INC (USA)
SPECIFICATIONS
materialSTEEL COMP 8640 OVERALL
head_styleHEXAGON
head_height0.281 INCHES NOMINAL IN
thread_class3A A
thread_length1.000 INCHES MINIMUM IN
fastener_length3.625 INCHES NOMINAL IN
hardness_rating27.6 ROCKWELL C MINIMUM AND 32.1 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
width_between_flats0.562 INCHES NOMINAL IN
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch16
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-00-350-7042
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: X3571 · 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: 0.562 INCHES NOMINAL IN
FASTENER LENGTH: 3.625 INCHES NOMINAL IN
HEAD STYLE: HEXAGON
MATERIAL: STEEL COMP 8640 OVERALL
THREAD LENGTH: 1.000 INCHES MINIMUM IN
HARDNESS RATING: 27.6 ROCKWELL C MINIMUM AND 32.1 ROCKWELL C MAXIMUM OVERALL
THREAD QUANTITY PER INCH: 16
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH BETWEEN FLATS0.562 INCHES NOMINAL IN
FASTENER LENGTH3.625 INCHES NOMINAL IN
HEAD STYLEHEXAGON
MATERIALSTEEL COMP 8640 OVERALL
THREAD LENGTH1.000 INCHES MINIMUM IN
HARDNESS RATING27.6 ROCKWELL C MINIMUM AND 32.1 ROCKWELL C MAXIMUM OVERALL
THREAD QUANTITY PER INCH16
THREAD CLASS3A A
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
AN814-10DLInterchangeable
interchangeable cross-reference
interchangeable
61G920-10Interchangeable
interchangeable cross-reference
interchangeable
190948Interchangeable
Same NIIN cross-reference
interchangeable
CC1515Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is X3571?
X3571 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace X3571?
There are 4 known substitutes for X3571: AN814-10DL, 61G920-10, 190948 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for X3571?
X3571 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-350-7042. This indicates validated use in U.S. government and defense supply chains.
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