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2BA541 ✓ 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 OVERALL, thickness: 0.032 INCHES NOMINAL IN, hole_diameter: 0.171 INCHES NOMINAL IN, overall_diameter: 0.562 INCHES NOMINAL IN, surface_treatment: CADMIUM OVERALL, peripheral_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-155-3444, 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
2BA541
NSN: 5310-01-155-3444
FSC: 5310
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.032 INCHES NOMINAL IN
hole_diameter0.171 INCHES NOMINAL IN
overall_diameter0.562 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-01-155-3444
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2BA541 · 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
•
CENTER HOLE SHAPE STYLE: ROUND
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OVERALL DIAMETER: 0.562 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.171 INCHES NOMINAL IN
•
THICKNESS: 0.032 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL DIAMETER0.562 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND
HOLE DIAMETER0.171 INCHES NOMINAL IN
THICKNESS0.032 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
95J12KInterchangeable
interchangeable cross-reference
interchangeable
4656Interchangeable
interchangeable cross-reference
interchangeable
B4656Interchangeable
interchangeable cross-reference
interchangeable
4339406Interchangeable
interchangeable cross-reference
interchangeable
2196052Interchangeable
interchangeable cross-reference
interchangeable
4240433Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2BA541?
2BA541 is a WASHER,FLAT.
What parts can replace 2BA541?
There are 18 known substitutes for 2BA541: 95J12K, 4656, B4656 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2BA541?
2BA541 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-155-3444. 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