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Technical Data Sheet
PartsTable / COMPONENT / NS-3983 ITEM 4,0.5IN
NS-3983 ITEM 4,0.5IN ✓ 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 NS-3983 ITEM 4,0.5IN is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-227-6137, 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
NS-3983 ITEM 4,0.5IN
NSN: 5310-01-227-6137
FSC: 5310
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
Part NumberNS-3983 ITEM 4,0.5IN
NSN5310-01-227-6137
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NS-3983 ITEM 4,0.5IN · 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
300-163Interchangeable
interchangeable cross-reference
interchangeable
5050Interchangeable
interchangeable cross-reference
interchangeable
CL210SPEC34634Interchangeable
interchangeable cross-reference
interchangeable
CL210SPEC37736Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NS-3983 ITEM 4,0.5IN?
NS-3983 ITEM 4,0.5IN is a NS-3983 ITEM 4,0.5IN.
What parts can replace NS-3983 ITEM 4,0.5IN?
There are 4 known substitutes for NS-3983 ITEM 4,0.5IN: 300-163, 5050, CL210SPEC34634 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NS-3983 ITEM 4,0.5IN?
NS-3983 ITEM 4,0.5IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-227-6137. 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