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Technical Data Sheet
PartsTable / COMPONENT / 0.875-9UNC-3B NICU L1
0.875-9UNC-3B NICU L1 ✓ 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 0.875-9UNC-3B NICU L1 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-375-0654, 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
0.875-9UNC-3B NICU L1
NSN: 5310-01-375-0654
FSC: 5310
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
Part Number0.875-9UNC-3B NICU L1
NSN5310-01-375-0654
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 0.875-9UNC-3B NICU L1 · 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
•
DEPARTURE FROM CITED DOCUMENT: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
•
MATERIAL: NICKEL ALLOY OVERALL
•
THREAD CLASS: 3B
•
NOMINAL THREAD SIZE: 0.875 INCHES IN
•
THREAD QUANTITY PER INCH: 9
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
CRITICALITY CODE JUSTIFICATION: ZZZW
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
DEPARTURE FROM CITED DOCUMENTMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
MATERIALNICKEL ALLOY OVERALL
THREAD CLASS3B
NOMINAL THREAD SIZE0.875 INCHES IN
THREAD QUANTITY PER INCH9
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
CRITICALITY CODE JUSTIFICATIONZZZW
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
ESNA 09NU-149Interchangeable
interchangeable cross-reference
interchangeable
PL-999R0501 FIND 76L1Interchangeable
interchangeable cross-reference
interchangeable
PL-999R0501-D FIND 76Interchangeable
interchangeable cross-reference
interchangeable
09NE149Interchangeable
interchangeable cross-reference
interchangeable
09NE-149 (MONEL)Interchangeable
interchangeable cross-reference
interchangeable
845-7108795 ITEM 28Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0.875-9UNC-3B NICU L1?
0.875-9UNC-3B NICU L1 is a 0.875-9UNC-3B NICU L1.
What parts can replace 0.875-9UNC-3B NICU L1?
There are 27 known substitutes for 0.875-9UNC-3B NICU L1: ESNA 09NU-149, PL-999R0501 FIND 76L1, PL-999R0501-D FIND 76 and 24 more. Substitute compatibility should be verified for your specific system.
Is 0.875-9UNC-3B NICU L1 still available?
0.875-9UNC-3B NICU L1 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