PartsTable
Technical Data Sheet
68K2-82 ✓ 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,SELF-LOCKING,CAP is a the manufacturer industrial component. Key specifications include material: ALUMINUM OVERALL EXCEPT INSERT, nut_style: CAP, nut_height: 0.287 INCHES NOMINAL IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-523-2179, 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
68K2-82
NSN: 5310-00-523-2179
FSC: 5310
CAGE: 019L2 — ESNA, LLC (USA)
SPECIFICATIONS
materialALUMINUM OVERALL EXCEPT INSERT
nut_styleCAP
nut_height0.287 INCHES NOMINAL IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentANODIZE OVERALL EXCEPT INSERT
width_across_flats0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
nominal_thread_size0.164 INCHES IN
bearing_surface_typeCHAMFERED
NSN5310-00-523-2179
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 68K2-82 · 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 SERIES: UNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPE: CHAMFERED
NOMINAL THREAD SIZE: 0.164 INCHES IN
THREAD QUANTITY PER INCH: 32
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
THREAD CLASS: 3B
NUT HEIGHT: 0.287 INCHES NOMINAL IN
NUT STYLE: CAP
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPECHAMFERED
NOMINAL THREAD SIZE0.164 INCHES IN
THREAD QUANTITY PER INCH32
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
THREAD CLASS3B
NUT HEIGHT0.287 INCHES NOMINAL IN
NUT STYLECAP
WIDTH ACROSS FLATS0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
MATERIALPLASTIC POLYAMIDE NYLON LOCKING INSERT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
NSE11Interchangeable
interchangeable cross-reference
interchangeable
31018Interchangeable
interchangeable cross-reference
interchangeable
60809-1Interchangeable
interchangeable cross-reference
interchangeable
AMP60874-1Interchangeable
interchangeable cross-reference
interchangeable
1032598-2Interchangeable
interchangeable cross-reference
interchangeable
611821Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 68K2-82?
68K2-82 is a NUT,SELF-LOCKING,CAP.
What parts can replace 68K2-82?
There are 6 known substitutes for 68K2-82: NSE11, 31018, 60809-1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 68K2-82?
68K2-82 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-523-2179. This indicates validated use in U.S. government and defense supply chains.
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