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063446 ✓ 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

CHASSIS,ELECTRICAL-ELECTRONIC EQ. Key specifications include material: RUBBER SYNTHETIC OVERALL, thickness: 0.188 INCHES NOMINAL IN, hole_diameter: 1.219 INCHES NOMINAL IN, overall_diameter: 1.719 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-599-9753, 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
063446
NSN: 5310-00-599-9753
FSC: 5310
CAGE: 80850 — INTERLINE BRANDS, INC. DBA J. A. SEXAUER (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
thickness0.188 INCHES NOMINAL IN
hole_diameter1.219 INCHES NOMINAL IN
overall_diameter1.719 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationATTACK P/SC ASSYS P/N'S 068008,069503,SEARCH PERISCOPE ASSYS P/N'S 068009,069504,NO NSN'S ASSIGNED
cross-sectional_shape_styleRECTANGULAR
part_name_assigned_by_controlling_agencyCHASSIS,FRONT PANEL
NSN5310-00-599-9753
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 063446 · 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
•
THICKNESS: 0.188 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
HOLE DIAMETER: 1.219 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 1.719 INCHES NOMINAL IN
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.188 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER1.219 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER1.719 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
6-3-44Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-2692Interchangeable
interchangeable cross-reference
interchangeable
B6344Interchangeable
interchangeable cross-reference
interchangeable
180234PC6Interchangeable
interchangeable cross-reference
interchangeable
412-13Interchangeable
interchangeable cross-reference
interchangeable
AFSN31824-1-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 063446?
063446 is a CHASSIS,ELECTRICAL-ELECTRONIC EQ.
What parts can replace 063446?
There are 11 known substitutes for 063446: 6-3-44, MIL-F-2692, B6344 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 063446?
063446 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-599-9753. 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