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Technical Data Sheet
PartsTable / COMPONENT / 3478P
3478P ✓ 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,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include nut_style: ROUND, nut_diameter: 3.000 INCHES NOMINAL IN, nut_thickness: 2.000 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, drive_point_depth: 0.344 INCHES NOMINAL IN, small_end_diameter: 2.313 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 5310-00-393-3501, 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
3478P
NSN: 5310-00-393-3501
FSC: 5310
CAGE: 93232 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS WRIGHT ENGINEERED PUMP DIVISION USE CAGE CODE 0UBG9 FOR CATALOGING (USA)
SPECIFICATIONS
nut_styleROUND
nut_diameter3.000 INCHES NOMINAL IN
nut_thickness2.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND
drive_point_depth0.344 INCHES NOMINAL IN
small_end_diameter2.313 INCHES NOMINAL IN
drive_point_diameter0.344 INCHES NOMINAL IN
drive_point_quantity2
special_test_features0.375-18 UNS @INTERNAL
NSN5310-00-393-3501
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3478P · 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
•
DRIVE POINT DEPTH: 0.344 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
DRIVE POINT DIAMETER: 0.344 INCHES NOMINAL IN
•
SPECIAL TEST FEATURES: 0.375-18 UNS @INTERNAL
•
NUT DIAMETER: 3.000 INCHES NOMINAL IN
•
SMALL END DIAMETER: 2.313 INCHES NOMINAL IN
•
NUT THICKNESS: 2.000 INCHES NOMINAL IN
•
DRIVE POINT QUANTITY: 2
TECHNICAL CHARACTERISTICS (FLIS)
DRIVE POINT DEPTH0.344 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
DRIVE POINT DIAMETER0.344 INCHES NOMINAL IN
SPECIAL TEST FEATURES0.375-18 UNS @INTERNAL
NUT DIAMETER3.000 INCHES NOMINAL IN
SMALL END DIAMETER2.313 INCHES NOMINAL IN
NUT THICKNESS2.000 INCHES NOMINAL IN
DRIVE POINT QUANTITY2
NUT STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
110 1-15/32Interchangeable
interchangeable cross-reference
interchangeable
C12304Interchangeable
interchangeable cross-reference
interchangeable
53194Interchangeable
interchangeable cross-reference
interchangeable
X1711Interchangeable
interchangeable cross-reference
interchangeable
10094Interchangeable
interchangeable cross-reference
interchangeable
5400-250Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3478P?
3478P is a NUT,PLAIN,ROUND.
What parts can replace 3478P?
There are 16 known substitutes for 3478P: 110 1-15/32, C12304, 53194 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3478P?
3478P is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-393-3501. 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