PartsTable
Technical Data Sheet
N16311L ✓ 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: 0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-011-4378, 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
N16311L
NSN: 5310-00-011-4378
FSC: 5310
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
width_across_flats0.423 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
nominal_thread_size0.250 INCHES IN
bearing_surface_typeFLAT
thread_quantity_per_inch20
nondefinitive_spec/std_data2 TYPE AND 13 STYLE AND 2B CLASS
NSN5310-00-011-4378
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: N16311L · 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 QUANTITY PER INCH: 20
BEARING SURFACE TYPE: FLAT
NOMINAL THREAD SIZE: 0.250 INCHES IN
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
THREAD CLASS: 2B
NUT STYLE: HEXAGON
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 13 STYLE AND 2B CLASS
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH20
BEARING SURFACE TYPEFLAT
NOMINAL THREAD SIZE0.250 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD CLASS2B
NUT STYLEHEXAGON
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 13 STYLE AND 2B CLASS
MATERIALSTEEL OVERALL
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS0.423 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
103091Interchangeable
interchangeable cross-reference
interchangeable
B18.6.3Interchangeable
interchangeable cross-reference
interchangeable
FF-N-836Interchangeable
interchangeable cross-reference
interchangeable
FF-N-836 TY2ST13CL2BInterchangeable
interchangeable cross-reference
interchangeable
AT7200Interchangeable
interchangeable cross-reference
interchangeable
8485Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N16311L?
N16311L is a NUT,PLAIN,HEXAGON.
What parts can replace N16311L?
There are 15 known substitutes for N16311L: 103091, B18.6.3, FF-N-836 and 12 more. Substitute compatibility should be verified for your specific system.
Is N16311L still available?
N16311L is currently cancelled.
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