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Technical Data Sheet
PartsTable / COMPONENT / 723299-53
723299-53 ✓ 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: 0.094 INCHES NOMINAL IN, hole_diameter: 0.390 INCHES NOMINAL IN, hardness_rating: 110.0 ROCKWELL E NOMINAL, overall_diameter: 0.580 INCHES NOMINAL IN, peripheral_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 5310-00-853-5895, 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
723299-53
NSN: 5310-00-853-5895
FSC: 5310
CAGE: 82577 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON OVERALL
thickness0.094 INCHES NOMINAL IN
hole_diameter0.390 INCHES NOMINAL IN
hardness_rating110.0 ROCKWELL E NOMINAL
overall_diameter0.580 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
minimum_tensile_strength7000 POUNDS PER SQUARE INCH LBS
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-P-17091,TY 1-CANC MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-853-5895
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 723299-53 · 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
•
MINIMUM TENSILE STRENGTH: 7000 POUNDS PER SQUARE INCH LBS
•
HARDNESS RATING: 110.0 ROCKWELL E NOMINAL
•
MATERIAL: PLASTIC POLYAMIDE NYLON OVERALL
•
THICKNESS: 0.094 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-17091,TY 1-CANC MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OVERALL DIAMETER: 0.580 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.390 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
MINIMUM TENSILE STRENGTH7000 POUNDS PER SQUARE INCH LBS
HARDNESS RATING110.0 ROCKWELL E NOMINAL
MATERIALPLASTIC POLYAMIDE NYLON OVERALL
THICKNESS0.094 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-17091,TY 1-CANC MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL DIAMETER0.580 INCHES NOMINAL IN
HOLE DIAMETER0.390 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
A155Interchangeable
interchangeable cross-reference
interchangeable
BS4-1545PC3-4Interchangeable
interchangeable cross-reference
interchangeable
K155Interchangeable
interchangeable cross-reference
interchangeable
L3198-20HDLInterchangeable
interchangeable cross-reference
interchangeable
278-2122-010Interchangeable
interchangeable cross-reference
interchangeable
P19009Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 723299-53?
723299-53 is a WASHER,FLAT.
What parts can replace 723299-53?
There are 10 known substitutes for 723299-53: A155, BS4-1545PC3-4, K155 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 723299-53?
723299-53 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-853-5895. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026