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Technical Data Sheet
PartsTable / COMPONENT / 3-8XS10831
3-8XS10831 ✓ 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 WASHER,SPECIAL is a the manufacturer industrial component. Key specifications include end_item_identification: CHALLENGE MODELS 265 AND 305. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-116-6934, 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
3-8XS10831
NSN: 5310-00-116-6934
FSC: 5310
CAGE: 11444 — CHALLENGE MACHINERY CO THE (USA)
SPECIFICATIONS
end_item_identificationCHALLENGE MODELS 265 AND 305
NSN5310-00-116-6934
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3-8XS10831 · 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
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONCHALLENGE MODELS 265 AND 305
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
451-0058Interchangeable
interchangeable cross-reference
interchangeable
8815Interchangeable
interchangeable cross-reference
interchangeable
491094Interchangeable
interchangeable cross-reference
interchangeable
8815AInterchangeable
interchangeable cross-reference
interchangeable
C223292-1Interchangeable
interchangeable cross-reference
interchangeable
8550-5-W/8170Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-8XS10831?
3-8XS10831 is a WASHER,SPECIAL.
What parts can replace 3-8XS10831?
There are 16 known substitutes for 3-8XS10831: 451-0058, 8815, 491094 and 13 more. Substitute compatibility should be verified for your specific system.
Is 3-8XS10831 still available?
3-8XS10831 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026