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Technical Data Sheet
PartsTable / COMPONENT / SMB196656
SMB196656 ✓ 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,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1213 OVERALL, head_style: HEXAGON, head_height: 0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.282 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN, fastener_length: 0.344 INCHES MINIMUM AND 0.359 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 5306-00-600-3058, 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
SMB196656
NSN: 5306-00-600-3058
FSC: 5306
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialSTEEL COMP 1213 OVERALL
head_styleHEXAGON
head_height0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
thread_class2A A
thread_length0.282 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
fastener_length0.344 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
features_providedCASEHARDENED AND FINISHED HEAD
surface_treatmentPHOSPHATE OVERALL
width_between_flats0.372 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch32
NSN5306-00-600-3058
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SMB196656 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD SERIES DESIGNATOR: UNF
•
SURFACE TREATMENT: PHOSPHATE OVERALL
•
WIDTH BETWEEN FLATS: 0.372 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.344 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 32
•
THREAD LENGTH: 0.282 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD SERIES DESIGNATORUNF
SURFACE TREATMENTPHOSPHATE OVERALL
WIDTH BETWEEN FLATS0.372 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
FASTENER LENGTH0.344 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH32
THREAD LENGTH0.282 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
THREAD DIRECTIONRIGHT-HAND
HEAD STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
5253-635Interchangeable
interchangeable cross-reference
interchangeable
276Interchangeable
interchangeable cross-reference
interchangeable
AS568B-008Interchangeable
interchangeable cross-reference
interchangeable
561-24Interchangeable
interchangeable cross-reference
interchangeable
138C211H04Interchangeable
interchangeable cross-reference
interchangeable
17630-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SMB196656?
SMB196656 is a BOLT,MACHINE.
What parts can replace SMB196656?
There are 6 known substitutes for SMB196656: 5253-635, 276, AS568B-008 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SMB196656?
SMB196656 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-600-3058. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026