PartsTable
Technical Data Sheet
10303368 ✓ 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: 0.218 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), hardness_rating: 103.0 BRINELL STANDARD MINIMUM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-846-1056, 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
10303368
NSN: 5310-00-846-1056
FSC: 5310
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.218 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
hardness_rating103.0 BRINELL STANDARD MINIMUM
thread_directionRIGHT-HAND
width_across_flats0.488 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
nominal_thread_size0.250 INCHES IN
bearing_surface_typeFLAT
thread_quantity_per_inch20
nondefinitive_spec/std_dataB GROUP AND 4 TYPE AND 1 STYLE AND A GRADE
NSN5310-00-846-1056
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10303368 · 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
BEARING SURFACE TYPE: FLAT
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
HARDNESS RATING: 103.0 BRINELL STANDARD MINIMUM
THREAD QUANTITY PER INCH: 20
NOMINAL THREAD SIZE: 0.250 INCHES IN
NONDEFINITIVE SPEC/STD DATA: B GROUP AND 4 TYPE AND 1 STYLE AND A GRADE
MATERIAL: STEEL OVERALL
WIDTH ACROSS FLATS: 0.488 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
BEARING SURFACE TYPEFLAT
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
HARDNESS RATING103.0 BRINELL STANDARD MINIMUM
THREAD QUANTITY PER INCH20
NOMINAL THREAD SIZE0.250 INCHES IN
NONDEFINITIVE SPEC/STD DATAB GROUP AND 4 TYPE AND 1 STYLE AND A GRADE
MATERIALSTEEL OVERALL
WIDTH ACROSS FLATS0.488 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
NUT HEIGHT0.218 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
NUT STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
S2-24Interchangeable
interchangeable cross-reference
interchangeable
105-257Interchangeable
interchangeable cross-reference
interchangeable
1C4185-1Interchangeable
interchangeable cross-reference
interchangeable
23225-GInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-21604/5Interchangeable
interchangeable cross-reference
interchangeable
AWM-16363L33Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 10303368?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 10303368?
10303368 is a NUT,PLAIN,HEXAGON.
What parts can replace 10303368?
There are 7 known substitutes for 10303368: S2-24, 105-257, 1C4185-1 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10303368?
10303368 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-846-1056. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 10303368