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Technical Data Sheet
PartsTable / COMPONENT / 2226976
2226976 ✓ 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 ENGINE SUPPORT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.043 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-616-6946, 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
2226976
NSN: 5310-00-616-6946
FSC: 5310
CAGE: 28527 — L3HARRIS TECHNOLOGIES, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleHEXAGON
nut_height0.043 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.150 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
nominal_thread_size0.073 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch72
NSN5310-00-616-6946
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2226976 · 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
•
MATERIAL: COPPER ALLOY OVERALL
•
NOMINAL THREAD SIZE: 0.073 INCHES IN
•
THREAD SERIES: UNF
•
THREAD QUANTITY PER INCH: 72
•
BEARING SURFACE TYPE: CHAMFERED
•
NUT HEIGHT: 0.043 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.150 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
NOMINAL THREAD SIZE0.073 INCHES IN
THREAD SERIESUNF
THREAD QUANTITY PER INCH72
BEARING SURFACE TYPECHAMFERED
NUT HEIGHT0.043 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.150 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
NUT STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTCADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
AN345B1Interchangeable
interchangeable cross-reference
interchangeable
218-20Interchangeable
interchangeable cross-reference
interchangeable
226976Interchangeable
interchangeable cross-reference
interchangeable
2226976Interchangeable
interchangeable cross-reference
interchangeable
N207P2C11Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2226976?
2226976 is a ENGINE SUPPORT.
What parts can replace 2226976?
There are 5 known substitutes for 2226976: AN345B1, 218-20, 226976 and 2 more. Substitute compatibility should be verified for your specific system.
Is 2226976 still available?
2226976 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