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PartsTable / COMPONENT / 254817C
254817C ✓ 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 NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, nut_style: ROUND, nut_diameter: 1.750 INCHES NOMINAL IN, thread_class: 2B, nut_thickness: 0.875 INCHES NOMINAL IN, thread_series: UNF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-216-7985, 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
254817C
NSN: 5310-00-216-7985
FSC: 5310
CAGE: 93232 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS WRIGHT ENGINEERED PUMP DIVISION USE CAGE CODE 0UBG9 FOR CATALOGING (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
nut_styleROUND
nut_diameter1.750 INCHES NOMINAL IN
thread_class2B
nut_thickness0.875 INCHES NOMINAL IN
thread_seriesUNF
thread_directionLEFT-HAND
nominal_thread_size1.375 INCHES IN
drilled_hole_diameter0.250 INCHES NOMINAL IN
hole_type_and_quantity2 DRILLED AND 2 TAPPED
hole_configuration_styleCONFIGURATION F
thread_quantity_per_inch12
NSN5310-00-216-7985
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 254817C · 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 DIRECTION: LEFT-HAND
•
THREAD QUANTITY PER INCH: 12
•
THREAD SERIES: UNF
•
HOLE THREAD QUANTITY PER INCH: 20
•
HOLE NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
NOMINAL THREAD SIZE: 1.375 INCHES IN
•
HOLE CONFIGURATION STYLE: CONFIGURATION F
•
HOLE TYPE AND QUANTITY: 2 DRILLED AND 2 TAPPED
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONLEFT-HAND
THREAD QUANTITY PER INCH12
THREAD SERIESUNF
HOLE THREAD QUANTITY PER INCH20
HOLE NOMINAL THREAD DIAMETER0.250 INCHES IN
NOMINAL THREAD SIZE1.375 INCHES IN
HOLE CONFIGURATION STYLECONFIGURATION F
HOLE TYPE AND QUANTITY2 DRILLED AND 2 TAPPED
MATERIALNICKEL ALLOY OVERALL
THREAD CLASS2B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
SR-8000Interchangeable
interchangeable cross-reference
interchangeable
10378Interchangeable
interchangeable cross-reference
interchangeable
7735093P0001Interchangeable
interchangeable cross-reference
interchangeable
7735093P1Interchangeable
interchangeable cross-reference
interchangeable
0376Interchangeable
interchangeable cross-reference
interchangeable
2K40D1500Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 254817C?
254817C is a NUT,PLAIN,ROUND.
What parts can replace 254817C?
There are 23 known substitutes for 254817C: SR-8000, 10378, 7735093P0001 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 254817C?
254817C is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-216-7985. 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