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Technical Data Sheet
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98668R1 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

98668R1: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: CROWNED HEXAGON, head_height: 0.312 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.875 INCHES MINIMUM IN, fastener_length: 2.875 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-734-6822, 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
98668R1
NSN: 5306-00-734-6822
FSC: 5306 — Bolts
CAGE: 31007 — NAVISTAR INTERNATIONAL CORPORATION DBA NAVISTAR (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleCROWNED HEXAGON
head_height0.312 INCHES NOMINAL IN
thread_class3A A
thread_length0.875 INCHES MINIMUM IN
fastener_length2.875 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats0.875 INCHES NOMINAL IN
nominal_thread_diameter0.562 INCHES IN
thread_quantity_per_inch18
thread_series_designatorUNF
NSN5306-00-734-6822
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 98668R1 · 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: 0.312 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.875 INCHES NOMINAL IN
•
THREAD LENGTH: 0.875 INCHES MINIMUM IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.156 INCHES NOMINAL FIRST HOLE IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI A3135 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.562 INCHES IN
•
FEATURES PROVIDED: FINISHED HEAD
•
HEAD STYLE: CROWNED HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.312 INCHES NOMINAL IN
FASTENER LENGTH2.875 INCHES NOMINAL IN
THREAD LENGTH0.875 INCHES MINIMUM IN
SHANK UNTHREADED HOLE DIAMETER0.156 INCHES NOMINAL FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI A3135 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.562 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
HEAD STYLECROWNED HEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.875 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
15X580Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
314238Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 98668R1?
98668R1 is a BOLT,MACHINE.
What parts can replace 98668R1?
There are 2 known substitutes for 98668R1: 15X580, 314238. Substitute compatibility should be verified for your specific system.
What is the NSN for 98668R1?
98668R1 is cataloged in the U.S. Government catalog under NSN 5306-00-734-6822. This indicates validated use in U.S. government and defense supply chains.
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