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PartsTable / COMPONENT / 98019A330
98019A330 ✓ 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: STEEL CORROSION RESISTING OVERALL, thickness: 0.036 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN, hole_diameter: 0.219 INCHES NOMINAL IN, hardness_rating: 70.0 ROCKWELL C MINIMUM, overall_diameter: 0.438 INCHES NOMINAL IN, surface_treatment: PASSIVATE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-502-7714, 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
98019A330
NSN: 5310-01-502-7714
FSC: 5310
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thickness0.036 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
hole_diameter0.219 INCHES NOMINAL IN
hardness_rating70.0 ROCKWELL C MINIMUM
overall_diameter0.438 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identification5840014508126 AND 6110-01-532-1835, 100KW POWER DISTRIBUTION PANEL; LOGISTICS SUPPORT VESSEL
cross-sectional_shape_styleRECTANGULAR
part_name_assigned_by_controlling_agencyNBR 10 SS FLAT WASHER
NSN5310-01-502-7714
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 98019A330 · 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
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 0.438 INCHES NOMINAL IN
•
HARDNESS RATING: 70.0 ROCKWELL C MINIMUM
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION5840014508126 AND 6110-01-532-1835, 100KW POWER DISTRIBUTION PANEL; LOGISTICS SUPPORT VESSEL
MATERIALSTEEL CORROSION RESISTING OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTPASSIVATE OVERALL
CENTER HOLE SHAPE STYLEROUND
OVERALL DIAMETER0.438 INCHES NOMINAL IN
HARDNESS RATING70.0 ROCKWELL C MINIMUM
PART NAME ASSIGNED BY CONTROLLING AGENCYNBR 10 SS FLAT WASHER
THICKNESS0.036 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
HOLE DIAMETER0.219 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
4400-012Interchangeable
interchangeable cross-reference
interchangeable
440003Interchangeable
interchangeable cross-reference
interchangeable
4400-003Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 98019A330?
98019A330 is a WASHER,FLAT.
What parts can replace 98019A330?
There are 3 known substitutes for 98019A330: 4400-012, 440003, 4400-003. Substitute compatibility should be verified for your specific system.
What is the NSN for 98019A330?
98019A330 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-502-7714. 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