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A44488 ✓ 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,CONVEX is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN, outside_diameter: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN, style_designator: CONVEX, surface_treatment: CADMIUM OVERALL, material_thickness: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-448-6789, 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
A44488
NSN: 5310-00-448-6789
FSC: 5310
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
outside_diameter0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
style_designatorCONVEX
surface_treatmentCADMIUM OVERALL
material_thickness0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
NSN5310-00-448-6789
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A44488 · 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 THICKNESS: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CONVEX
•
HOLE DIAMETER: 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
OUTSIDE DIAMETER: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
STYLE DESIGNATORCONVEX
HOLE DIAMETER0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
OUTSIDE DIAMETER0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
44488Interchangeable
interchangeable cross-reference
interchangeable
AS4842Interchangeable
interchangeable cross-reference
interchangeable
AS4854Interchangeable
interchangeable cross-reference
interchangeable
AS4854-08Interchangeable
interchangeable cross-reference
interchangeable
N764902Interchangeable
interchangeable cross-reference
interchangeable
60106Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A44488?
A44488 is a WASHER,CONVEX.
What parts can replace A44488?
There are 6 known substitutes for A44488: 44488, AS4842, AS4854 and 3 more. Substitute compatibility should be verified for your specific system.
Is A44488 still available?
A44488 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