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333-0203-000 — NUT,SELF-LOCKING,SPLINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

333-0203-000: NUT,SELF-LOCKING,SPLINE.

The NUT,SELF-LOCKING,SPLINE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2017 OVERALL, nut_height: 0.245 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN, pilot_length: 0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), pilot_diameter: 0.220 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-596-6449, 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
333-0203-000
NSN: 5310-00-596-6449
FSC: 5310 — Nuts and Washers
CAGE: 95105 — ROCKWELL COLLINS, INC. DIV COLLINS AEROSPACE - MISSION SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2017 OVERALL
nut_height0.245 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN
pilot_length0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.220 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentANODIZE OVERALL
nominal_thread_size0.138 INCHES IN
thread_quantity_per_inch32
material_document_and_classificationAMS 4118 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-596-6449
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 333-0203-000 · 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)
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4118 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
PILOT DIAMETER: 0.220 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
•
PILOT LENGTH: 0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
•
NUT HEIGHT: 0.245 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4118 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
PILOT DIAMETER0.220 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
PILOT LENGTH0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT0.245 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN
SURFACE TREATMENTANODIZE OVERALL
THREAD CLASS3B
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
68NC1-62Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 333-0203-000?
333-0203-000 is a NUT,SELF-LOCKING,SPLINE.
What parts can replace 333-0203-000?
There is 1 known substitute for 333-0203-000: 68NC1-62. Substitute compatibility should be verified for your specific system.
What is the NSN for 333-0203-000?
333-0203-000 is cataloged in the U.S. Government catalog under NSN 5310-00-596-6449. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.