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Technical Data Sheet
PartsTable / COMPONENT / 0.750-10UNC-3B NICUD4
0.750-10UNC-3B NICUD4 ✓ 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 0.750-10UNC-3B NICUD4 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-443-5667, 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
0.750-10UNC-3B NICUD4
NSN: 5310-01-443-5667
FSC: 5310
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
Part Number0.750-10UNC-3B NICUD4
NSN5310-01-443-5667
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 0.750-10UNC-3B NICUD4 · 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
•
CRITICALITY CODE JUSTIFICATION: ZZZX
•
DEPARTURE FROM CITED DESIGNATOR: QUALITY ASSURANCE TESTED AND CERTIFIED FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONCOVER ASSSY, FWD AND AFT DOOR
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT, SELF LOCKING (INAVY)
CRITICALITY CODE JUSTIFICATIONZZZX
DEPARTURE FROM CITED DESIGNATORQUALITY ASSURANCE TESTED AND CERTIFIED FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
1504-50 PIECE 7Interchangeable
interchangeable cross-reference
interchangeable
MS17828-120Interchangeable
interchangeable cross-reference
interchangeable
751-6402402 ITEM 9Interchangeable
interchangeable cross-reference
interchangeable
167-8204846 ITEM NO 41Interchangeable
interchangeable cross-reference
interchangeable
PL-13911N18 ITEM 179BL1Interchangeable
interchangeable cross-reference
interchangeable
13911N18 ITEM 179BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0.750-10UNC-3B NICUD4?
0.750-10UNC-3B NICUD4 is a 0.750-10UNC-3B NICUD4.
What parts can replace 0.750-10UNC-3B NICUD4?
There are 28 known substitutes for 0.750-10UNC-3B NICUD4: 1504-50 PIECE 7, MS17828-120, 751-6402402 ITEM 9 and 25 more. Substitute compatibility should be verified for your specific system.
Is 0.750-10UNC-3B NICUD4 still available?
0.750-10UNC-3B NICUD4 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