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Technical Data Sheet
PartsTable / COMPONENT / 8P5
8P5 ✓ 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 color: SILVER HOLDER, material: PLASTIC LENS, thread_class: 2A A, thread_series: UNEF, overall_length: 0.710 INCHES NOMINAL IN, mounting_method: EXTERNAL THREAD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-022-0068, 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
8P5
NSN: 5310-00-022-0068
FSC: 5310
CAGE: 81118 — EATON CORPORATION (USA)
SPECIFICATIONS
colorSILVER HOLDER
materialPLASTIC LENS
thread_class2A A
thread_seriesUNEF
overall_length0.710 INCHES NOMINAL IN
mounting_methodEXTERNAL THREAD
shoulder_length0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
thread_diameter0.312 INCHES IN
thread_quantity32 PER INCH
overall_diameter0.500 INCHES NOMINAL IN
style_designatorFLAT
thread_directionRIGHT-HAND
NSN5310-00-022-0068
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8P5 · 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
•
WIDTH ACROSS FLATS: 0.812 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD QUANTITY PER INCH: 13
•
BEARING SURFACE TYPE: WASHER FACED
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
MATERIAL: STEEL OVERALL
•
SPECIFICATION/STANDARD DATA: 81348-FF-B-571/SUPERSEDED/ GOVERNMENT SPECIFICATION
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH ACROSS FLATS0.812 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH13
BEARING SURFACE TYPEWASHER FACED
NOMINAL THREAD SIZE0.500 INCHES IN
MATERIALSTEEL OVERALL
SPECIFICATION/STANDARD DATA81348-FF-B-571/SUPERSEDED/ GOVERNMENT SPECIFICATION
THREAD CLASS2B
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY NUT HEIGHT
NONDEFINITIVE SPEC/STD DATAB2 TYPE AND A1 STYLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
A77-180Interchangeable
interchangeable cross-reference
interchangeable
P254Interchangeable
interchangeable cross-reference
interchangeable
8-172Interchangeable
interchangeable cross-reference
interchangeable
P52Interchangeable
interchangeable cross-reference
interchangeable
95000-100Interchangeable
interchangeable cross-reference
interchangeable
9018998Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8P5?
8P5 is a NUT,PLAIN,HEXAGON.
What parts can replace 8P5?
There are 14 known substitutes for 8P5: A77-180, P254, 8-172 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8P5?
8P5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-022-0068. 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