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K3304 ✓ 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 OVERALL, head_style: HEXAGON, head_height: 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.500 INCHES MAXIMUM IN, fastener_length: 0.500 INCHES NOMINAL 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 5306-00-017-9812, 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
K3304
NSN: 5306-00-017-9812
FSC: 5306
CAGE: 30798 — AMCA INTL CORP INSLEY MFG CORP DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
thread_class2A A
thread_length0.500 INCHES MAXIMUM IN
fastener_length0.500 INCHES NOMINAL IN
hardness_rating23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
nominal_thread_diameter0.312 INCHES IN
minimum_tensile_strength120000 POUNDS PER SQUARE INCH LBS
NSN5306-00-017-9812
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: K3304 · 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
•
HEAD HEIGHT: 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
FASTENER LENGTH: 0.500 INCHES NOMINAL IN
•
THREAD LENGTH: 0.500 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
HEAD STYLE: HEXAGON
•
THREAD CLASS: 2A A
•
FEATURES PROVIDED: FINISHED HEAD
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.500 INCHES NOMINAL IN
THREAD LENGTH0.500 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
HEAD STYLEHEXAGON
THREAD CLASS2A A
FEATURES PROVIDEDFINISHED HEAD
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH BETWEEN FLATS0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
1048AInterchangeable
interchangeable cross-reference
interchangeable
10750Interchangeable
interchangeable cross-reference
interchangeable
10-5791Interchangeable
interchangeable cross-reference
interchangeable
AS-107141Interchangeable
interchangeable cross-reference
interchangeable
107141-01Interchangeable
interchangeable cross-reference
interchangeable
MS35295-29Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is K3304?
K3304 is a BOLT,MACHINE.
What parts can replace K3304?
There are 6 known substitutes for K3304: 1048A, 10750, 10-5791 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for K3304?
K3304 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-017-9812. 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