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2740-0003 ✓ 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 2740-0003 is a the manufacturer industrial component. Key specifications include material: STEEL COMP 430 NUT, nut_style: EXTERNAL TOOTH, nut_height: 0.125 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF, overall_height: 0.156 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 5310-00-093-7322, 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
2740-0003
NSN: 5310-00-093-7322
FSC: 5310
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
materialSTEEL COMP 430 NUT
nut_styleEXTERNAL TOOTH
nut_height0.125 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
overall_height0.156 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_across_flats0.375 INCHES NOMINAL IN
nominal_thread_size0.190 INCHES IN
washer_outside_diameter0.395 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
thread_quantity_per_inch32
NSN5310-00-093-7322
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2740-0003 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
041A0000011000EInterchangeable
interchangeable cross-reference
interchangeable
511-101800-50Interchangeable
interchangeable cross-reference
interchangeable
69-561-6Interchangeable
interchangeable cross-reference
interchangeable
5111018005002802580Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2740-0003?
2740-0003 is a 2740-0003.
What parts can replace 2740-0003?
There are 4 known substitutes for 2740-0003: 041A0000011000E, 511-101800-50, 69-561-6 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2740-0003?
2740-0003 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-093-7322. 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