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PartsTable / COMPONENT / SMB105231
SMB105231 ✓ 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,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.062 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.063 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN, screw_material: STEEL COMP 303, fastener_length: 0.094 INCHES MINIMUM AND 0.109 INCHES MAXIMUM 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 5305-00-537-8625, 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
SMB105231
NSN: 5305-00-537-8625
FSC: 5305
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.062 INCHES NOMINAL IN
thread_class2A A
thread_length0.063 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
screw_materialSTEEL COMP 303
fastener_length0.094 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
special_featuresTHD RELIEVED
thread_directionRIGHT-HAND
width_between_flats0.250 INCHES NOMINAL IN
nominal_thread_diameter0.112 INCHES IN
thread_quantity_per_inch40
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-00-537-8625
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SMB105231 · 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
•
HEAD HEIGHT: 0.062 INCHES NOMINAL IN
•
THREAD LENGTH: 0.063 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
•
HEAD STYLE: HEXAGON
•
THREAD CLASS: 2A A
•
FASTENER LENGTH: 0.094 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.062 INCHES NOMINAL IN
THREAD LENGTH0.063 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
HEAD STYLEHEXAGON
THREAD CLASS2A A
FASTENER LENGTH0.094 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE
SPECIAL FEATURESTHD RELIEVED
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH40
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
A7686Interchangeable
interchangeable cross-reference
interchangeable
7686Interchangeable
interchangeable cross-reference
interchangeable
9151297Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SMB105231?
SMB105231 is a SCREW,MACHINE.
What parts can replace SMB105231?
There are 3 known substitutes for SMB105231: A7686, 7686, 9151297. Substitute compatibility should be verified for your specific system.
What is the NSN for SMB105231?
SMB105231 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-537-8625. 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