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Technical Data Sheet
PartsTable / COMPONENT / SMB70373
SMB70373 ✓ 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 material: COPPER ALLOY 510 OVERALL, eye_offset: 0.031 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.500 INCHES NOMINAL IN, overall_length: 7.611 INCHES NOMINAL IN, style_designator: OFFSET, ROUND, CLOSED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-356-3351, 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
SMB70373
NSN: 5306-00-356-3351
FSC: 5306
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialCOPPER ALLOY 510 OVERALL
eye_offset0.031 INCHES NOMINAL IN
thread_class2A A
thread_length0.500 INCHES NOMINAL IN
overall_length7.611 INCHES NOMINAL IN
style_designatorOFFSET, ROUND, CLOSED
thread_directionRIGHT-HAND
surface_treatmentNICKEL OVERALL
eye_inside_diameter0.158 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
nominal_thread_diameter0.099 INCHES IN
thread_quantity_per_inch48
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5306-00-356-3351
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SMB70373 · 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
•
EYE INSIDE DIAMETER: 0.158 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.099 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD LENGTH: 0.500 INCHES NOMINAL IN
•
DISTANCE FROM CENTER OF EYE TO SHANK END: 7.562 INCHES NOMINAL IN
•
THREAD CLASS: 2A A
•
THREAD QUANTITY PER INCH: 48
TECHNICAL CHARACTERISTICS (FLIS)
EYE INSIDE DIAMETER0.158 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.099 INCHES IN
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.500 INCHES NOMINAL IN
DISTANCE FROM CENTER OF EYE TO SHANK END7.562 INCHES NOMINAL IN
THREAD CLASS2A A
THREAD QUANTITY PER INCH48
OVERALL LENGTH7.611 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
STYLE DESIGNATOROFFSET, ROUND, CLOSED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
50529Interchangeable
interchangeable cross-reference
interchangeable
37-901Interchangeable
interchangeable cross-reference
interchangeable
SCB69574Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SMB70373?
SMB70373 is a BOLT,EYE.
What parts can replace SMB70373?
There are 3 known substitutes for SMB70373: 50529, 37-901, SCB69574. Substitute compatibility should be verified for your specific system.
What is the NSN for SMB70373?
SMB70373 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-356-3351. 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