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DX-1068 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The DX-1068 is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: SINGLE BALL SEAT, HEXAGON, nut_height: 0.880 INCHES NOMINAL IN, thread_class: 2B, thread_series: UN, hardness_rating: 88.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 90.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-221-9519, 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
DX-1068
NSN: 5310-01-221-9519
FSC: 5310
CAGE: 63576 — HEIL TRAILER INTERNATIONAL LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleSINGLE BALL SEAT, HEXAGON
nut_height0.880 INCHES NOMINAL IN
thread_class2B
thread_seriesUN
hardness_rating88.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 90.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
ball_seat_radius0.875 INCHES NOMINAL IN
thread_directionLEFT-HAND
surface_treatmentZINC AND CHROMATE OVERALL EXCEPT THREADS
width_across_flats1.485 INCHES NOMINAL IN
nominal_thread_size1.125 INCHES IN
thread_quantity_per_inch16
NSN5310-01-221-9519
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: DX-1068 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
RSC-00341Interchangeable
interchangeable cross-reference
interchangeable
DX-1068Interchangeable
interchangeable cross-reference
interchangeable
279671Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DX-1068?
DX-1068 is a DX-1068.
What parts can replace DX-1068?
There are 3 known substitutes for DX-1068: RSC-00341, DX-1068, 279671. Substitute compatibility should be verified for your specific system.
What is the NSN for DX-1068?
DX-1068 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-221-9519. 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