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Technical Data Sheet
PartsTable / COMPONENT / XB73
XB73 ✓ 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,EYE is a the manufacturer industrial component. Key specifications include shank_length: 0.938 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.812 INCHES MINIMUM IN, overall_length: 1.375 INCHES NOMINAL IN, style_designator: ROUND, CLOSED, eye_outside_width: 0.375 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-208-0673, 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
XB73
NSN: 5306-00-208-0673
FSC: 5306
CAGE: 66289 — WISCONSIN MOTORS, LLC (USA)
SPECIFICATIONS
shank_length0.938 INCHES NOMINAL IN
thread_class3A A
thread_length0.812 INCHES MINIMUM IN
overall_length1.375 INCHES NOMINAL IN
style_designatorROUND, CLOSED
eye_outside_width0.375 INCHES NOMINAL IN
eye_inside_diameter0.201 INCHES NOMINAL IN
eye_stock_thickness0.375 INCHES NOMINAL IN
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5306-00-208-0673
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: XB73 · 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: UNIFIED NATIONAL COARSE (UNC)
•
EYE STOCK THICKNESS: 0.375 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
EYE INSIDE DIAMETER: 0.201 INCHES NOMINAL IN
•
THREAD CLASS: 3A A
•
THREAD LENGTH: 0.812 INCHES MINIMUM IN
•
EYE OUTSIDE WIDTH: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
EYE STOCK THICKNESS0.375 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
EYE INSIDE DIAMETER0.201 INCHES NOMINAL IN
THREAD CLASS3A A
THREAD LENGTH0.812 INCHES MINIMUM IN
OVERALL LENGTH1.375 INCHES NOMINAL IN
EYE OUTSIDE WIDTH0.375 INCHES NOMINAL IN
STYLE DESIGNATORROUND, CLOSED
SHANK LENGTH0.938 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
TC330Interchangeable
interchangeable cross-reference
interchangeable
TC330-1X2Interchangeable
interchangeable cross-reference
interchangeable
7000000787Interchangeable
interchangeable cross-reference
interchangeable
9017BInterchangeable
interchangeable cross-reference
interchangeable
999249Interchangeable
interchangeable cross-reference
interchangeable
TC330-1X9/16INInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is XB73?
XB73 is a BOLT,EYE.
What parts can replace XB73?
There are 6 known substitutes for XB73: TC330, TC330-1X2, 7000000787 and 3 more. Substitute compatibility should be verified for your specific system.
Is XB73 still available?
XB73 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