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PartsTable / COMPONENT / 8528665
8528665 ✓ 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,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1020 OVERALL, hole_diameter: 1.016 INCHES NOMINAL IN, outside_diameter: 2.000 INCHES NOMINAL IN, style_designator: KEY, material_thickness: 0.125 INCHES NOMINAL IN, internal_straight_key_width: 0.281 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-546-8212, 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
8528665
NSN: 5310-00-546-8212
FSC: 5310
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OVERALL
hole_diameter1.016 INCHES NOMINAL IN
outside_diameter2.000 INCHES NOMINAL IN
style_designatorKEY
material_thickness0.125 INCHES NOMINAL IN
internal_key_quantity1
internal_straight_key_width0.281 INCHES NOMINAL IN
material_document_and_classificationASTMA108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
distance_from_centerline_to_top_of_internal_key0.383 INCHES NOMINAL IN
NSN5310-00-546-8212
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8528665 · 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
•
OUTSIDE DIAMETER: 2.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL: STEEL COMP 1020 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTMA108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
INTERNAL STRAIGHT KEY WIDTH: 0.281 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY: 0.383 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.125 INCHES NOMINAL IN
•
INTERNAL KEY QUANTITY: 1
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER2.000 INCHES NOMINAL IN
STYLE DESIGNATORKEY
MATERIALSTEEL COMP 1020 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTMA108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
INTERNAL STRAIGHT KEY WIDTH0.281 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY0.383 INCHES NOMINAL IN
MATERIAL THICKNESS0.125 INCHES NOMINAL IN
INTERNAL KEY QUANTITY1
HOLE DIAMETER1.016 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
AMS-QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
LS3489Interchangeable
interchangeable cross-reference
interchangeable
S1125597Interchangeable
interchangeable cross-reference
interchangeable
30934Interchangeable
interchangeable cross-reference
interchangeable
BAC1503-2811Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8528665?
8528665 is a WASHER,KEY.
What parts can replace 8528665?
There are 9 known substitutes for 8528665: AMS-QQ-A-200/3, LS3489, S1125597 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8528665?
8528665 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-546-8212. 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