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Technical Data Sheet
PartsTable / COMPONENT / 193M4
193M4 ✓ 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 SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: SQUARE, head_height: 0.234 INCHES NOMINAL IN, point_style: FLAT, point_length: 0.312 INCHES NOMINAL IN, thread_class: 2A A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-207-0744, 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
193M4
NSN: 5305-00-207-0744
FSC: 5305
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleSQUARE
head_height0.234 INCHES NOMINAL IN
point_styleFLAT
point_length0.312 INCHES NOMINAL IN
thread_class2A A
thread_length1.188 INCHES MINIMUM IN
fastener_length1.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND
point_chamfer_angle30.0 DEGREES NOMINAL
width_between_flats0.312 INCHES NOMINAL IN
internal_drive_styleW/O INTERNAL DRIVE
NSN5305-00-207-0744
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 193M4 · 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 CLASS: 2A A
•
THREAD LENGTH: 1.188 INCHES MINIMUM IN
•
WIDTH BETWEEN FLATS: 0.312 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
POINT STYLE: FLAT
•
POINT CHAMFER ANGLE: 30.0 DEGREES NOMINAL
•
THREAD QUANTITY PER INCH: 18
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A A
THREAD LENGTH1.188 INCHES MINIMUM IN
WIDTH BETWEEN FLATS0.312 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
POINT STYLEFLAT
POINT CHAMFER ANGLE30.0 DEGREES NOMINAL
THREAD QUANTITY PER INCH18
FASTENER LENGTH1.500 INCHES NOMINAL IN
HEAD STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
C512-1Interchangeable
interchangeable cross-reference
interchangeable
AC512-1Interchangeable
interchangeable cross-reference
interchangeable
153394Interchangeable
interchangeable cross-reference
interchangeable
712026Interchangeable
interchangeable cross-reference
interchangeable
35750064Interchangeable
Same NIIN cross-reference
interchangeable
3C082Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 193M4?
193M4 is a SETSCREW.
What parts can replace 193M4?
There are 8 known substitutes for 193M4: C512-1, AC512-1, 153394 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 193M4?
193M4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-207-0744. 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