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Technical Data Sheet
PartsTable / COMPONENT / 179869
179869 ✓ 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: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.125 INCHES NOMINAL IN, fastener_length: 2.670 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN, hardness_rating: 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-118-6300, 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
179869
NSN: 5305-00-118-6300
FSC: 5305
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
thread_class2A A
thread_length1.125 INCHES NOMINAL IN
fastener_length2.670 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN
hardness_rating23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
width_between_flats0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
nominal_thread_diameter0.438 INCHES IN
minimum_tensile_strength120000 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch14
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-00-118-6300
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 179869 · 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
•
FASTENER LENGTH: 2.670 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE GRADE 5 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
HEAD HEIGHT: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
•
THREAD CLASS: 2A A
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
WIDTH BETWEEN FLATS: 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
HARDNESS RATING: 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
FASTENER LENGTH2.670 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GRADE 5 ASSN STD ALL MATERIAL RESPONSES OVERALL
HEAD HEIGHT0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
THREAD CLASS2A A
NOMINAL THREAD DIAMETER0.438 INCHES IN
WIDTH BETWEEN FLATS0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
HARDNESS RATING23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
THREAD DIRECTIONRIGHT-HAND
MINIMUM TENSILE STRENGTH120000 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
13744Interchangeable
interchangeable cross-reference
interchangeable
8420Interchangeable
interchangeable cross-reference
interchangeable
2374400Interchangeable
interchangeable cross-reference
interchangeable
450501Interchangeable
interchangeable cross-reference
interchangeable
N13744Interchangeable
interchangeable cross-reference
interchangeable
118588-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 179869?
179869 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 179869?
There are 9 known substitutes for 179869: 13744, 8420, 2374400 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 179869?
179869 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-118-6300. 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