PartsTable
Technical Data Sheet
PartsTable / COMPONENT / DX263
DX263 ✓ 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 WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.636 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM, outside_diameter: 1.100 INCHES MAXIMUM IN, style_designator: SPLIT HELICAL-RIGHT HAND, material_thickness: 0.189 INCHES MINIMUM AND 0.199 INCHES MAXIMUM 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 5310-00-010-3331, 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
DX263
NSN: 5310-00-010-3331
FSC: 5310
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.636 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
outside_diameter1.100 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness0.189 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
nondefinitive_spec/std_data3 STYLE AND A CLASS
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-010-3331
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: DX263 · 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
KEY FEATURES
•
OUTSIDE DIAMETER: 1.100 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL: STEEL OVERALL
•
NONDEFINITIVE SPEC/STD DATA: 3 STYLE AND A CLASS
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
•
MATERIAL THICKNESS: 0.189 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.636 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER1.100 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIALSTEEL OVERALL
NONDEFINITIVE SPEC/STD DATA3 STYLE AND A CLASS
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
MATERIAL THICKNESS0.189 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
HOLE DIAMETER0.636 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
2475482Interchangeable
interchangeable cross-reference
interchangeable
CF-868-9Interchangeable
interchangeable cross-reference
interchangeable
W1-10Interchangeable
interchangeable cross-reference
interchangeable
TW110Interchangeable
interchangeable cross-reference
interchangeable
54614HBYInterchangeable
interchangeable cross-reference
interchangeable
85767R91Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy DX263?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is DX263?
DX263 is a WASHER,LOCK.
What parts can replace DX263?
There are 13 known substitutes for DX263: 2475482, CF-868-9, W1-10 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DX263?
DX263 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-010-3331. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — DX263

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026