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PartsTable / COMPONENT / 4678525 IT 24
4678525 IT 24 ✓ 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,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1018 OVERALL, nut_style: HEXAGONHEXAGON, nut_height: 0.190 INCHES NOMINAL0.190 INCHES NOMINAL IN, thread_class: 2B2B, thread_series: UNSUNS, thread_direction: RIGHT-HANDRIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-134-3278, 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
4678525 IT 24
NSN: 5310-01-134-3278
FSC: 5310
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 1018 OVERALL
nut_styleHEXAGONHEXAGON
nut_height0.190 INCHES NOMINAL0.190 INCHES NOMINAL IN
thread_class2B2B
thread_seriesUNSUNS
thread_directionRIGHT-HANDRIGHT-HAND
countersink_angle90.0 DEGREES NOMINAL BOTH ENDS90.0 DEGREES NOMINAL BOTH ENDS
width_across_flats0.437 INCHES NOMINAL0.437 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES0.250 INCHES IN
bearing_surface_typeCHAMFEREDCHAMFERED
thread_quantity_per_inch4040
NSN5310-01-134-3278
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4678525 IT 24 · 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 CLASS: 2B2B
•
THREAD SERIES: UNSUNS
•
NOMINAL THREAD SIZE: 0.250 INCHES0.250 INCHES IN
•
THREAD QUANTITY PER INCH: 4040
•
NUT HEIGHT: 0.190 INCHES NOMINAL0.190 INCHES NOMINAL IN
•
BEARING SURFACE TYPE: CHAMFEREDCHAMFERED
•
NUT STYLE: HEXAGONHEXAGON
•
WIDTH ACROSS FLATS: 0.437 INCHES NOMINAL0.437 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B2B
THREAD SERIESUNSUNS
NOMINAL THREAD SIZE0.250 INCHES0.250 INCHES IN
THREAD QUANTITY PER INCH4040
NUT HEIGHT0.190 INCHES NOMINAL0.190 INCHES NOMINAL IN
BEARING SURFACE TYPECHAMFEREDCHAMFERED
NUT STYLEHEXAGONHEXAGON
WIDTH ACROSS FLATS0.437 INCHES NOMINAL0.437 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
MATERIALSTEEL COMP 1018 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
2189926-1Interchangeable
interchangeable cross-reference
interchangeable
02232Interchangeable
interchangeable cross-reference
interchangeable
104Interchangeable
interchangeable cross-reference
interchangeable
F-8034GInterchangeable
interchangeable cross-reference
interchangeable
RR-F-191/4Interchangeable
interchangeable cross-reference
interchangeable
203-4678525 ITEM 24Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4678525 IT 24?
4678525 IT 24 is a NUT,PLAIN,HEXAGON.
What parts can replace 4678525 IT 24?
There are 6 known substitutes for 4678525 IT 24: 2189926-1, 02232, 104 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4678525 IT 24?
4678525 IT 24 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-134-3278. 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