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PartsTable / COMPONENT / AN301-20-3
AN301-20-3 ✓ 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 AN301-20-3 is a the manufacturer industrial component. Key specifications include material: STEEL LOCATION NOT OTHERWISE SPECIFIED, head_style: FLAT, sterilized: NO, point_style: DIAMOND, shank_style: SMOOTH ROUND, shank_diameter: 0.035 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 5315-00-223-5590, 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
AN301-20-3
NSN: 5315-00-223-5590
FSC: 5315
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
head_styleFLAT
sterilizedNO
point_styleDIAMOND
shank_styleSMOOTH ROUND
shank_diameter0.035 INCHES NOMINAL IN
decorative_headNO
fastener_length0.375 INCHES NOMINAL IN
surface_treatmentADHESIVE
fabrication_methodCOLD FORMED
surface_treatment_locationOVERALL
NSN5315-00-223-5590
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AN301-20-3 · 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
•
HEAD STYLE: FLAT
•
POINT STYLE: DIAMOND
•
SHANK DIAMETER: 0.035 INCHES NOMINAL IN
•
SHANK STYLE: SMOOTH ROUND
•
DECORATIVE HEAD: NO
•
STERILIZED: NO
•
SURFACE TREATMENT: ADHESIVE
•
MATERIAL: STEEL LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEFLAT
POINT STYLEDIAMOND
SHANK DIAMETER0.035 INCHES NOMINAL IN
SHANK STYLESMOOTH ROUND
DECORATIVE HEADNO
STERILIZEDNO
SURFACE TREATMENTADHESIVE
MATERIALSTEEL LOCATION NOT OTHERWISE SPECIFIED
SURFACE TREATMENT LOCATIONOVERALL
FASTENER LENGTH0.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
AN302-20-2Interchangeable
interchangeable cross-reference
interchangeable
FFN101Interchangeable
interchangeable cross-reference
interchangeable
F1667NLBL02-CInterchangeable
interchangeable cross-reference
interchangeable
AN301-18-6Interchangeable
interchangeable cross-reference
interchangeable
B2C2AInterchangeable
interchangeable cross-reference
interchangeable
303-7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN301-20-3?
AN301-20-3 is a AN301-20-3.
What parts can replace AN301-20-3?
There are 6 known substitutes for AN301-20-3: AN302-20-2, FFN101, F1667NLBL02-C and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN301-20-3?
AN301-20-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-223-5590. 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