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PartsTable / COMPONENT / SMB338374
SMB338374 ✓ 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 THUMBSCREW is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: KNURLED NO. 3, head_height: 0.147 INCHES NOMINAL IN, point_style: FLAT, thread_class: 2A A, head_diameter: 0.500 INCHES NOMINAL IN.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-341-7865, 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
SMB338374
NSN: 5305-00-341-7865
FSC: 5305
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleKNURLED NO. 3
head_height0.147 INCHES NOMINAL IN
point_styleFLAT
thread_class2A A
head_diameter0.500 INCHES NOMINAL IN
thread_length0.181 INCHES MINIMUM IN
fastener_length0.259 INCHES NOMINAL IN
special_featuresPHENOLIC INSERT PRESSED INTO 0.125 IN. DIA HOLE IN BOTTOM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_diameter0.312 INCHES IN
NSN5305-00-341-7865
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SMB338374 · 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: STEEL CORROSION RESISTING OVERALL
•
THREAD QUANTITY PER INCH: 18
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
FASTENER LENGTH: 0.259 INCHES NOMINAL IN
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESPHENOLIC INSERT PRESSED INTO 0.125 IN. DIA HOLE IN BOTTOM IN
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD QUANTITY PER INCH18
SURFACE TREATMENTPASSIVATE OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD DIAMETER0.312 INCHES IN
FASTENER LENGTH0.259 INCHES NOMINAL IN
THREAD CLASS2A A
POINT STYLEFLAT
HEAD DIAMETER0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
MB11136Interchangeable
interchangeable cross-reference
interchangeable
11136Interchangeable
interchangeable cross-reference
interchangeable
S5689-1500Interchangeable
interchangeable cross-reference
interchangeable
4118735-135Interchangeable
interchangeable cross-reference
interchangeable
AN3106E14S7SInterchangeable
interchangeable cross-reference
interchangeable
061-136Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SMB338374?
SMB338374 is a THUMBSCREW.
What parts can replace SMB338374?
There are 20 known substitutes for SMB338374: MB11136, 11136, S5689-1500 and 17 more. Substitute compatibility should be verified for your specific system.
Is SMB338374 still available?
SMB338374 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