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146453 ✓ 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 thickness: 0.040 INCHES NOMINAL IN, hole_diameter: 0.757 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN, overall_diameter: 1.125 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND, cross-sectional_shape_style: RECTANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-437-2149, 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
146453
NSN: 5310-00-437-2149
FSC: 5310
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
thickness0.040 INCHES NOMINAL IN
hole_diameter0.757 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
overall_diameter1.125 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-S-5059,COND 1/4 H MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-437-2149
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 146453 · 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
•
CENTER HOLE SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059,COND 1/4 H MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
HOLE DIAMETER: 0.757 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
•
THICKNESS: 0.040 INCHES NOMINAL IN
•
OVERALL DIAMETER: 1.125 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059,COND 1/4 H MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
HOLE DIAMETER0.757 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
THICKNESS0.040 INCHES NOMINAL IN
OVERALL DIAMETER1.125 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
K-2990Interchangeable
interchangeable cross-reference
interchangeable
30864Interchangeable
interchangeable cross-reference
interchangeable
392811Interchangeable
interchangeable cross-reference
interchangeable
ESL63859Interchangeable
interchangeable cross-reference
interchangeable
8787Interchangeable
interchangeable cross-reference
interchangeable
ESL63859ISSUE1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 146453?
146453 is a WASHER,FLAT.
What parts can replace 146453?
There are 10 known substitutes for 146453: K-2990, 30864, 392811 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 146453?
146453 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-437-2149. 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