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Technical Data Sheet
PartsTable / COMPONENT / 98-6642-00-705
98-6642-00-705 ✓ 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,SPLIT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.270 INCHES NOMINAL IN, outside_diameter: 0.561 INCHES NOMINAL IN, style_designator: SPLIT, material_thickness: 0.071 INCHES NOMINAL IN, distance_across_split_opening: 0.185 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 5310-00-026-9902, 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
98-6642-00-705
NSN: 5310-00-026-9902
FSC: 5310
CAGE: 81860 — HUTCHINSON AEROSPACE & INDUSTRY, INC. DBA BARRY WRIGHT CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.270 INCHES NOMINAL IN
outside_diameter0.561 INCHES NOMINAL IN
style_designatorSPLIT
material_thickness0.071 INCHES NOMINAL IN
distance_across_split_opening0.185 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5310-00-026-9902
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 98-6642-00-705 · 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
•
HOLE DIAMETER: 0.270 INCHES NOMINAL IN
•
DISTANCE ACROSS SPLIT OPENING: 0.185 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.561 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.071 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: SPLIT
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.270 INCHES NOMINAL IN
DISTANCE ACROSS SPLIT OPENING0.185 INCHES NOMINAL IN
OUTSIDE DIAMETER0.561 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
MATERIAL THICKNESS0.071 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORSPLIT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
2468624PC2Interchangeable
interchangeable cross-reference
interchangeable
2919312-1Interchangeable
interchangeable cross-reference
interchangeable
2468624-2Interchangeable
interchangeable cross-reference
interchangeable
16642Interchangeable
interchangeable cross-reference
interchangeable
16643Interchangeable
interchangeable cross-reference
interchangeable
62X3542Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 98-6642-00-705?
98-6642-00-705 is a WASHER,SPLIT.
What parts can replace 98-6642-00-705?
There are 13 known substitutes for 98-6642-00-705: 2468624PC2, 2919312-1, 2468624-2 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 98-6642-00-705?
98-6642-00-705 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-026-9902. 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