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PartsTable / COMPONENT / X04221
X04221 ✓ 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 STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8640, thread_class: 3A NUT THREAD A, thread_length: 0.812 INCHES MINIMUM NUT THREAD IN, overall_length: 2.000 INCHES NOMINAL IN, thread_direction: RIGHT-HAND STUD THREAD, surface_treatment: CADMIUM OR ZINC OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-466-4746, 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
X04221
NSN: 5307-00-466-4746
FSC: 5307
CAGE: 14351 — TELEDYNE CONTINENTAL MOTORS INDUSTRIAL PRODUCTS DIV TELEDYNE INDUSTRIES INC SUB OF TELEDYNE INC (USA)
SPECIFICATIONS
materialSTEEL COMP 8640
thread_class3A NUT THREAD A
thread_length0.812 INCHES MINIMUM NUT THREAD IN
overall_length2.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND STUD THREAD
surface_treatmentCADMIUM OR ZINC OVERALL
nominal_thread_size0.375 INCHES STUD THREAD IN
thread_pitch_diameters+0.3368 TO 0.3388 INCHES STUD THREAD IN
thread_quantity_per_inch16 NUT THREAD
thread_series_designatorUNS STUD THREAD
NSN5307-00-466-4746
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: X04221 · 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 SERIES DESIGNATOR: UNS STUD THREAD
•
THREAD LENGTH: 0.812 INCHES MINIMUM NUT THREAD IN
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
THREAD PITCH DIAMETERS: +0.3368 TO 0.3388 INCHES STUD THREAD IN
•
MATERIAL: STEEL COMP 8640
•
THREAD DIRECTION: RIGHT-HAND NUT THREAD
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNS STUD THREAD
THREAD LENGTH0.812 INCHES MINIMUM NUT THREAD IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
THREAD LENGTH0.625 INCHES MINIMUM STUD THREAD IN
THREAD PITCH DIAMETERS+0.3368 TO 0.3388 INCHES STUD THREAD IN
MATERIALSTEEL COMP 8640
THREAD DIRECTIONRIGHT-HAND NUT THREAD
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) NUT THREAD
THREAD CLASS3A NUT THREAD A
NOMINAL THREAD SIZE0.375 INCHES STUD THREAD IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
SUC166Interchangeable
interchangeable cross-reference
interchangeable
Z701F50MHZInterchangeable
interchangeable cross-reference
interchangeable
WC25-5Interchangeable
interchangeable cross-reference
interchangeable
40401Interchangeable
interchangeable cross-reference
interchangeable
560511Interchangeable
interchangeable cross-reference
interchangeable
TE5695Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is X04221?
X04221 is a STUD,PLAIN.
What parts can replace X04221?
There are 11 known substitutes for X04221: SUC166, Z701F50MHZ, WC25-5 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for X04221?
X04221 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-466-4746. 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