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PartsTable / COMPONENT / K6643028PC217
K6643028PC217 ✓ 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: 0.937 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 3.250 INCHES MINIMUM IN, fastener_length: 3.500 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 5306-00-338-3853, 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
K6643028PC217
NSN: 5306-00-338-3853
FSC: 5306
CAGE: 01289 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.937 INCHES NOMINAL IN
thread_class2A A
thread_length3.250 INCHES MINIMUM IN
fastener_length3.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats2.375 INCHES NOMINAL IN
nominal_thread_diameter1.500 INCHES IN
thread_quantity_per_inch8
thread_series_designatorUN
NSN5306-00-338-3853
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: K6643028PC217 · 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
•
NOMINAL THREAD DIAMETER: 1.500 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD QUANTITY PER INCH: 8
•
HEAD STYLE: HEXAGON
•
FEATURES PROVIDED: FINISHED HEAD
•
WIDTH BETWEEN FLATS: 2.375 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.937 INCHES NOMINAL IN
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER1.500 INCHES IN
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH8
HEAD STYLEHEXAGON
FEATURES PROVIDEDFINISHED HEAD
WIDTH BETWEEN FLATS2.375 INCHES NOMINAL IN
HEAD HEIGHT0.937 INCHES NOMINAL IN
THREAD CLASS2A A
FASTENER LENGTH3.500 INCHES NOMINAL IN
THREAD LENGTH3.250 INCHES MINIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
1427070Upgraded Successor
successor cross-reference
successor
SP20889Upgraded Successor
successor cross-reference
successor
M1222B2N8C220GFNZXUpgraded Successor
successor cross-reference
successor
146440Upgraded Successor
successor cross-reference
successor
MIL-DTL-1222JUpgraded Successor
successor cross-reference
successor
M1222RN8C264GFNNUpgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is K6643028PC217?
K6643028PC217 is a BOLT,MACHINE.
What parts can replace K6643028PC217?
There are 19 known substitutes for K6643028PC217: 1427070, SP20889, M1222B2N8C220GFNZX and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for K6643028PC217?
K6643028PC217 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-338-3853. 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