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PartsTable / COMPONENT / 22041N 2.5IN PIECE 51
22041N 2.5IN PIECE 51 ✓ 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 22041N 2.5IN PIECE 51 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 5310-01-432-6222, 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
22041N 2.5IN PIECE 51
NSN: 5310-01-432-6222
FSC: 5310
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
Part Number22041N 2.5IN PIECE 51
NSN5310-01-432-6222
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 22041N 2.5IN PIECE 51 · 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 DOCUMENT AND CLASSIFICATION: ASTMA194 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
NUT STYLE: HEXAGON
•
THREAD QUANTITY PER INCH: 16
•
SURFACE TREATMENT: PHOSPHATE ZINC OVERALL
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONASTMA194 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.375 INCHES IN
NUT STYLEHEXAGON
THREAD QUANTITY PER INCH16
SURFACE TREATMENTPHOSPHATE ZINC OVERALL
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
24187Interchangeable
interchangeable cross-reference
interchangeable
2493773Interchangeable
interchangeable cross-reference
interchangeable
A-A-413Interchangeable
interchangeable cross-reference
interchangeable
31330Interchangeable
interchangeable cross-reference
interchangeable
17720Interchangeable
interchangeable cross-reference
interchangeable
A58961Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 22041N 2.5IN PIECE 51?
22041N 2.5IN PIECE 51 is a 22041N 2.5IN PIECE 51.
What parts can replace 22041N 2.5IN PIECE 51?
There are 8 known substitutes for 22041N 2.5IN PIECE 51: 24187, 2493773, A-A-413 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 22041N 2.5IN PIECE 51?
22041N 2.5IN PIECE 51 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-432-6222. 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