PartsTable
Technical Data Sheet
16A4C2 ✓ 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 material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.258 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), hardness_rating: 121.0 BRINELL STANDARD MINIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-880-7744, 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
16A4C2
NSN: 5310-00-880-7744
FSC: 5310
CAGE: 33968 — CLARK EQUIPMENT CO DIV DOOSAN INFRACORE PORTABLE POWER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.258 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
hardness_rating121.0 BRINELL STANDARD MINIMUM
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
width_across_flats0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
nominal_thread_size0.312 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
end_item_identificationMRAP BUFFALO MK2A2
NSN5310-00-880-7744
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 16A4C2 · 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
NOMINAL THREAD SIZE: 0.312 INCHES IN
WIDTH ACROSS FLATS: 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH: 18
HARDNESS RATING: 121.0 BRINELL STANDARD MINIMUM
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.312 INCHES IN
WIDTH ACROSS FLATS0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
END ITEM IDENTIFICATIONMRAP BUFFALO MK2A2
THREAD QUANTITY PER INCH18
HARDNESS RATING121.0 BRINELL STANDARD MINIMUM
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
SURFACE TREATMENTZINC OVERALL
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
80014Interchangeable
interchangeable cross-reference
interchangeable
33797S7Interchangeable
interchangeable cross-reference
interchangeable
MS35690-505Interchangeable
interchangeable cross-reference
interchangeable
NUMBER 21NTU-04 0Interchangeable
interchangeable cross-reference
interchangeable
07-0652Interchangeable
interchangeable cross-reference
interchangeable
M09-0103Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 16A4C2?
16A4C2 is a NUT,PLAIN,HEXAGON.
What parts can replace 16A4C2?
There are 28 known substitutes for 16A4C2: 80014, 33797S7, MS35690-505 and 25 more. Substitute compatibility should be verified for your specific system.
Is 16A4C2 still available?
16A4C2 is currently cancelled.
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