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PartsTable / COMPONENT / 93190A624
93190A624 ✓ 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,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.230 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.000 INCHES NOMINAL IN, fastener_length: 1.000 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-509-0161, 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
93190A624
NSN: 5305-01-509-0161
FSC: 5305
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.230 INCHES NOMINAL IN
thread_class2A A
thread_length1.000 INCHES NOMINAL IN
fastener_length1.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_between_flats0.563 INCHES NOMINAL IN
end_item_identificationSQH-4B TOWFIS
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch16
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-509-0161
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 93190A624 · 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 LENGTH: 1.000 INCHES NOMINAL IN
•
HEAD STYLE: HEXAGON
•
HEAD HEIGHT: 0.230 INCHES NOMINAL IN
•
WIDTH BETWEEN FLATS: 0.563 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
FASTENER LENGTH: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH1.000 INCHES NOMINAL IN
HEAD STYLEHEXAGON
HEAD HEIGHT0.230 INCHES NOMINAL IN
WIDTH BETWEEN FLATS0.563 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
FASTENER LENGTH1.000 INCHES NOMINAL IN
END ITEM IDENTIFICATIONSQH-4B TOWFIS
THREAD QUANTITY PER INCH16
THREAD CLASS2A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
77-105Interchangeable
interchangeable cross-reference
interchangeable
1440880Interchangeable
interchangeable cross-reference
interchangeable
3249Interchangeable
interchangeable cross-reference
interchangeable
03249Interchangeable
interchangeable cross-reference
interchangeable
1250-00-22Interchangeable
interchangeable cross-reference
interchangeable
77090Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 93190A624?
93190A624 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 93190A624?
There are 9 known substitutes for 93190A624: 77-105, 1440880, 3249 and 6 more. Substitute compatibility should be verified for your specific system.
Is 93190A624 still available?
93190A624 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