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PartsTable / COMPONENT / 0.375-16UNC-3BNICUL1
0.375-16UNC-3BNICUL1 ✓ 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 0.375-16UNC-3BNICUL1 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-312-8111, 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
0.375-16UNC-3BNICUL1
NSN: 5310-01-312-8111
FSC: 5310
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
Part Number0.375-16UNC-3BNICUL1
NSN5310-01-312-8111
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 0.375-16UNC-3BNICUL1 · 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
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
•
MATERIAL: NICKEL ALLOY OVERALL
•
THREAD QUANTITY PER INCH: 16
•
THREAD CLASS: 3B
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS (FLIS)
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
MATERIALNICKEL ALLOY OVERALL
THREAD QUANTITY PER INCH16
THREAD CLASS3B
SPECIAL FEATURESEJECTOR SIGNAL HYDMN OPER AFT
CRITICALITY CODE JUSTIFICATIONZZZY
NOMINAL THREAD SIZE0.375 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
H861-1506-15Interchangeable
interchangeable cross-reference
interchangeable
111-5486615 ITEM 21Interchangeable
interchangeable cross-reference
interchangeable
2633-561-01 PC 219-2Interchangeable
interchangeable cross-reference
interchangeable
845-6556398PC36Interchangeable
interchangeable cross-reference
interchangeable
MS17828-6CInterchangeable
interchangeable cross-reference
interchangeable
709-8540949 ITEM 018-4D4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0.375-16UNC-3BNICUL1?
0.375-16UNC-3BNICUL1 is a 0.375-16UNC-3BNICUL1.
What parts can replace 0.375-16UNC-3BNICUL1?
There are 26 known substitutes for 0.375-16UNC-3BNICUL1: H861-1506-15, 111-5486615 ITEM 21, 2633-561-01 PC 219-2 and 23 more. Substitute compatibility should be verified for your specific system.
Is 0.375-16UNC-3BNICUL1 still available?
0.375-16UNC-3BNICUL1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026