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203MT011P003 — NUT,SELF-LOCKING,SPLINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

203MT011P003: NUT,SELF-LOCKING,SPLINE.

The NUT,SELF-LOCKING,SPLINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1212 NUT, nut_height: 0.246 INCHES NOMINAL IN, pilot_length: 0.105 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), pilot_diameter: 0.189 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-208-4152, 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
203MT011P003
NSN: 5310-00-208-4152
FSC: 5310 — Nuts and Washers
CAGE: 05452 — RAYTHEON CO RAYTHEON SYSTEMS CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1212 NUT
nut_height0.246 INCHES NOMINAL IN
pilot_length0.105 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.189 INCHES NOMINAL IN
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentCADMIUM NUT
nominal_thread_size0.112 INCHES IN
thread_quantity_per_inch40
material_document_and_classificationQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE NUT
NSN5310-00-208-4152
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 203MT011P003 · 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: QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE NUT
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.112 INCHES IN
•
PILOT DIAMETER: 0.189 INCHES NOMINAL IN
•
PILOT LENGTH: 0.105 INCHES NOMINAL IN
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
•
NUT HEIGHT: 0.246 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE NUT
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.112 INCHES IN
PILOT DIAMETER0.189 INCHES NOMINAL IN
PILOT LENGTH0.105 INCHES NOMINAL IN
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT0.246 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM NUT
THREAD CLASS3B
SUBSTITUTES & CROSS-REFERENCES 1
22NC3-40Reference 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 203MT011P003?
203MT011P003 is a NUT,SELF-LOCKING,SPLINE.
What parts can replace 203MT011P003?
There is 1 known substitute for 203MT011P003: 22NC3-40. Substitute compatibility should be verified for your specific system.
What is the NSN for 203MT011P003?
203MT011P003 is cataloged in the U.S. Government catalog under NSN 5310-00-208-4152. 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.