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Technical Data Sheet
PartsTable / COMPONENT / 0.625-11UNC-3B NICU
0.625-11UNC-3B NICU ✓ 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 0.625-11UNC-3B NICU 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 5310-01-269-0328, 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
0.625-11UNC-3B NICU
NSN: 5310-01-269-0328
FSC: 5310
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number0.625-11UNC-3B NICU
NSN5310-01-269-0328
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 0.625-11UNC-3B NICU · 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
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
TEMP RATING: 450.0 FAHRENHEIT NOMINAL DEGF
•
DEPARTURE FROM CITED DOCUMENT: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
•
NUT HEIGHT: 0.732 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
•
SPECIAL TEST FEATURES: AS DIFFERENTIATED BY TEMPERATURE RATING
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
THREAD QUANTITY PER INCH: 11
•
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
TEMP RATING450.0 FAHRENHEIT NOMINAL DEGF
DEPARTURE FROM CITED DOCUMENTMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
NUT HEIGHT0.732 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
SPECIAL TEST FEATURESAS DIFFERENTIATED BY TEMPERATURE RATING
NOMINAL THREAD SIZE0.625 INCHES IN
THREAD QUANTITY PER INCH11
THREAD CLASS3B
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
NUT STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
RW-166886 PIECE 1.6L1Interchangeable
interchangeable cross-reference
interchangeable
807045-15L1Interchangeable
interchangeable cross-reference
interchangeable
505-4457351 PIECE 152L1Interchangeable
interchangeable cross-reference
interchangeable
801-6408784 FIND 178Interchangeable
interchangeable cross-reference
interchangeable
302707 FIND 14Interchangeable
interchangeable cross-reference
interchangeable
60-08-0429L1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0.625-11UNC-3B NICU?
0.625-11UNC-3B NICU is a 0.625-11UNC-3B NICU.
What parts can replace 0.625-11UNC-3B NICU?
There are 25 known substitutes for 0.625-11UNC-3B NICU: RW-166886 PIECE 1.6L1, 807045-15L1, 505-4457351 PIECE 152L1 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 0.625-11UNC-3B NICU?
0.625-11UNC-3B NICU is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-269-0328. 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