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Technical Data Sheet
PartsTable / COMPONENT / 2459776
2459776 ✓ 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,FLAT is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON OVERALL, thickness: 0.063 INCHES NOMINAL IN, hole_diameter: 0.192 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN, hardness_rating: 110.0 ROCKWELL R MINIMUM, overall_diameter: 0.375 INCHES NOMINAL IN, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-902-3402, 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
2459776
NSN: 5310-00-902-3402
FSC: 5310
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON OVERALL
thickness0.063 INCHES NOMINAL IN
hole_diameter0.192 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
hardness_rating110.0 ROCKWELL R MINIMUM
overall_diameter0.375 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-M-20693,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-902-3402
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2459776 · 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: 0.063 INCHES NOMINAL IN
•
OVERALL DIAMETER: 0.375 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.192 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-M-20693,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: PLASTIC POLYAMIDE NYLON OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
CENTER HOLE SHAPE STYLE: ROUND
•
HARDNESS RATING: 110.0 ROCKWELL R MINIMUM
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.063 INCHES NOMINAL IN
OVERALL DIAMETER0.375 INCHES NOMINAL IN
HOLE DIAMETER0.192 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-M-20693,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALPLASTIC POLYAMIDE NYLON OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
CENTER HOLE SHAPE STYLEROUND
HARDNESS RATING110.0 ROCKWELL R MINIMUM
PERIPHERAL SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
27820Interchangeable
interchangeable cross-reference
interchangeable
L1681-18Interchangeable
interchangeable cross-reference
interchangeable
2674Interchangeable
interchangeable cross-reference
interchangeable
SI-8198Interchangeable
interchangeable cross-reference
interchangeable
C68552-2Interchangeable
interchangeable cross-reference
interchangeable
2R674Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2459776?
2459776 is a WASHER,FLAT.
What parts can replace 2459776?
There are 12 known substitutes for 2459776: 27820, L1681-18, 2674 and 9 more. Substitute compatibility should be verified for your specific system.
Is 2459776 still available?
2459776 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026