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AN3-6 ✓ 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 NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 OVERALL, material_document_and_classification: ASTM A276 ASSN STD SINGLE MATERIAL RESPONSE 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 5310-00-185-6390, 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
AN3-6
NSN: 5310-00-185-6390
FSC: 5310
CAGE: 52676 — SKF USA INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 410 OVERALL
material_document_and_classificationASTM A276 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-185-6390
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AN3-6 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
DRIVE POINT QUANTITY: 4
•
THREAD SERIES: UNS
•
THREAD QUANTITY PER INCH: 8
•
NOMINAL THREAD SIZE: 7.066 INCHES IN
•
HARDNESS RATING: 66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM
•
THREAD PITCH DIAMETERS: +6.9848 TO 6.9939 INCHES IN
•
NUT STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
DRIVE POINT QUANTITY4
THREAD SERIESUNS
THREAD QUANTITY PER INCH8
NOMINAL THREAD SIZE7.066 INCHES IN
HARDNESS RATING66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM
THREAD PITCH DIAMETERS+6.9848 TO 6.9939 INCHES IN
NUT STYLEROUND
MATERIALSTEEL COMP 1005 OVERALL
DRIVE POINT WIDTH0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
278-16Interchangeable
interchangeable cross-reference
interchangeable
AN3-6Interchangeable
interchangeable cross-reference
interchangeable
5306PL0809449Interchangeable
interchangeable cross-reference
interchangeable
E-15084Interchangeable
interchangeable cross-reference
interchangeable
993H0022 PIECE 26Interchangeable
interchangeable cross-reference
interchangeable
150046000-26AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN3-6?
AN3-6 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace AN3-6?
There are 8 known substitutes for AN3-6: 278-16, AN3-6, 5306PL0809449 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN3-6?
AN3-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-185-6390. 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