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PartsTable / COMPONENT / D28929
D28929 ✓ 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,CAP is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: CAP, nut_height: 1.375 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-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 5310-00-208-4258, 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
D28929
NSN: 5310-00-208-4258
FSC: 5310
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleCAP
nut_height1.375 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats1.250 INCHES NOMINAL IN
nominal_thread_size0.875 INCHES IN
bearing_surface_typeFLAT
thread_quantity_per_inch14
NSN5310-00-208-4258
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: D28929 · 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 3
28929Interchangeable
interchangeable cross-reference
interchangeable
12074-1-20Interchangeable
interchangeable cross-reference
interchangeable
1034-D770-16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D28929?
D28929 is a NUT,PLAIN,CAP.
What parts can replace D28929?
There are 3 known substitutes for D28929: 28929, 12074-1-20, 1034-D770-16. Substitute compatibility should be verified for your specific system.
What is the NSN for D28929?
D28929 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