PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 851122
851122 ✓ 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,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1035 OVERALL, head_style: HEXAGON, head_height: 0.328 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.562 INCHES MINIMUM IN, fastener_length: 1.250 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 5306-00-208-9101, 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
851122
NSN: 5306-00-208-9101
FSC: 5306
CAGE: 12603 — CLARK EQUIPMENT CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1035 OVERALL
head_styleHEXAGON
head_height0.328 INCHES NOMINAL IN
thread_class3A A
thread_length0.562 INCHES MINIMUM IN
fastener_length1.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_between_flats0.625 INCHES NOMINAL IN
nominal_thread_diameter0.437 INCHES IN
first_diameter_from_head0.406 INCHES NOMINAL IN
thread_quantity_per_inch14
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5306-00-208-9101
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 851122 · 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 STYLE: HEXAGON
•
NOMINAL THREAD DIAMETER: 0.437 INCHES IN
•
SECOND DIAMETER FROM HEAD: 0.435 INCHES NOMINAL IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER: 0.594 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.250 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEHEXAGON
NOMINAL THREAD DIAMETER0.437 INCHES IN
SECOND DIAMETER FROM HEAD0.435 INCHES NOMINAL IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.594 INCHES NOMINAL IN
FASTENER LENGTH1.250 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.625 INCHES NOMINAL IN
FIRST DIAMETER FROM HEAD0.406 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
5709Upgraded Successor
successor cross-reference
successor
330-J26-400 ITEM 101Upgraded Successor
successor cross-reference
successor
218-27539-2Interchangeable
interchangeable cross-reference
interchangeable
744-6091-2Interchangeable
interchangeable cross-reference
interchangeable
005-709Interchangeable
interchangeable cross-reference
interchangeable
A5709Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 851122?
851122 is a BOLT,EXTERNALLY RELIEVED BODY.
What parts can replace 851122?
There are 14 known substitutes for 851122: 5709, 330-J26-400 ITEM 101, 218-27539-2 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 851122?
851122 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-208-9101. 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