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PartsTable / COMPONENT / 9028498
9028498 ✓ 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 COMP 4130 OVERALL, thickness: 0.061 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN, hole_diameter: 0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN, overall_diameter: 0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN, surface_treatment: ZINC OR CADMIUM OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-721-5902, 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
9028498
NSN: 5310-00-721-5902
FSC: 5310
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
thickness0.061 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
hole_diameter0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
overall_diameter0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN
surface_treatmentZINC OR CADMIUM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-S-18729,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-Z-325,TY 2,CL 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416,TY 1,CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL
NSN5310-00-721-5902
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 9028498 · 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 COMP 4130 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-18729,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: ZINC OR CADMIUM OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TY 2,CL 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416,TY 1,CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
•
CENTER HOLE SHAPE STYLE: ROUND
•
THICKNESS: 0.061 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 4130 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18729,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTZINC OR CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TY 2,CL 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416,TY 1,CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL
PERIPHERAL SHAPE STYLEROUND
HOLE DIAMETER0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
THICKNESS0.061 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
OVERALL DIAMETER0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
12514Interchangeable
interchangeable cross-reference
interchangeable
12514-1Interchangeable
interchangeable cross-reference
interchangeable
105-126-101Interchangeable
interchangeable cross-reference
interchangeable
5001251-4Interchangeable
interchangeable cross-reference
interchangeable
P140775-1PC103Interchangeable
interchangeable cross-reference
interchangeable
455290SK0Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9028498?
9028498 is a WASHER,FLAT.
What parts can replace 9028498?
There are 16 known substitutes for 9028498: 12514, 12514-1, 105-126-101 and 13 more. Substitute compatibility should be verified for your specific system.
Is 9028498 still available?
9028498 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