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28929 ✓ 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 FREQUENCY MULTIPLIER is a the manufacturer industrial component. Key specifications include head_style: PAN, thread_length: 2.5 INCHES NOMINAL IN, screw_material: STEEL, special_features: 2.5CI WINCH ATV PART NUMBERS 64500 AND 64501, RT/XT 25/30 ATV WINCH, internal_drive_style: FOUR SPLINE, end_item_identification: WINCH, ATV. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-208-4258, 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
28929
NSN: 5310-00-208-4258
FSC: 5310
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
head_stylePAN
thread_length2.5 INCHES NOMINAL IN
screw_materialSTEEL
special_features2.5CI WINCH ATV PART NUMBERS 64500 AND 64501, RT/XT 25/30 ATV WINCH
internal_drive_styleFOUR SPLINE
end_item_identificationWINCH, ATV
part_name_assigned_by_controlling_agencyROLLER FAIRLEAD KIT
NSN5310-00-208-4258
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 28929 · 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
•
NUT STYLE: CAP
•
NOMINAL THREAD SIZE: 0.875 INCHES IN
•
THREAD QUANTITY PER INCH: 14
•
THREAD SERIES: UNF
•
BEARING SURFACE TYPE: FLAT
•
THREAD DIRECTION: RIGHT-HAND
•
NUT HEIGHT: 1.375 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLECAP
NOMINAL THREAD SIZE0.875 INCHES IN
THREAD QUANTITY PER INCH14
THREAD SERIESUNF
BEARING SURFACE TYPEFLAT
THREAD DIRECTIONRIGHT-HAND
NUT HEIGHT1.375 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
THREAD CLASS2B
WIDTH ACROSS FLATS1.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
28929Interchangeable
interchangeable cross-reference
interchangeable
12074-1-20Interchangeable
interchangeable cross-reference
interchangeable
1034-D770-16Interchangeable
interchangeable cross-reference
interchangeable
D28929Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 28929?
28929 is a FREQUENCY MULTIPLIER.
What parts can replace 28929?
There are 4 known substitutes for 28929: 28929, 12074-1-20, 1034-D770-16 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 28929?
28929 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-208-4258. 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