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PartsTable / COMPONENT / 2018-4 ITEM 39
2018-4 ITEM 39 ✓ 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 PIN,SHOULDER,HEADED is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, first_step_length: 1.344 INCHES NOMINAL IN, under_head_length: 1.9375 INCHES NOMINAL IN, first_step_diameter: 0.2460 INCHES MINIMUM AND 0.2480 INCHES MAXIMUM IN, second_step_diameter: 0.190 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 5315-01-486-8862, 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
2018-4 ITEM 39
NSN: 5315-01-486-8862
FSC: 5315
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
head_styleHEXAGON
first_step_length1.344 INCHES NOMINAL IN
under_head_length1.9375 INCHES NOMINAL IN
first_step_diameter0.2460 INCHES MINIMUM AND 0.2480 INCHES MAXIMUM IN
second_step_diameter0.190 INCHES NOMINAL IN
NSN5315-01-486-8862
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2018-4 ITEM 39 · 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: HEXAGON
•
FIRST STEP LENGTH: 1.344 INCHES NOMINAL IN
•
SECOND STEP DIAMETER: 0.190 INCHES NOMINAL IN
•
UNDER HEAD LENGTH: 1.9375 INCHES NOMINAL IN
•
FIRST STEP DIAMETER: 0.2460 INCHES MINIMUM AND 0.2480 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEHEXAGON
FIRST STEP LENGTH1.344 INCHES NOMINAL IN
SECOND STEP DIAMETER0.190 INCHES NOMINAL IN
UNDER HEAD LENGTH1.9375 INCHES NOMINAL IN
FIRST STEP DIAMETER0.2460 INCHES MINIMUM AND 0.2480 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
6053656Interchangeable
interchangeable cross-reference
interchangeable
20184Interchangeable
interchangeable cross-reference
interchangeable
11206Interchangeable
interchangeable cross-reference
interchangeable
20-1085-2Interchangeable
interchangeable cross-reference
interchangeable
4430Interchangeable
interchangeable cross-reference
interchangeable
518-5794755Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2018-4 ITEM 39?
2018-4 ITEM 39 is a PIN,SHOULDER,HEADED.
What parts can replace 2018-4 ITEM 39?
There are 14 known substitutes for 2018-4 ITEM 39: 6053656, 20184, 11206 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2018-4 ITEM 39?
2018-4 ITEM 39 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-486-8862. 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