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203MS012P001 — NUT,SELF-LOCKING,SPLINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

203MS012P001: NUT,SELF-LOCKING,SPLINE.

The NUT,SELF-LOCKING,SPLINE is a the manufacturer industrial component. Key specifications include material: STEEL AND PLASTIC POLYAMIDE NYLON NUT, nut_height: 0.204 INCHES NOMINAL IN, pilot_length: 0.016 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 5310-00-208-4854, 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
203MS012P001
NSN: 5310-00-208-4854
FSC: 5310 — Nuts and Washers
CAGE: 04164 — RAYTHEON COMPANY DBA RAYTHEON CO (USA)
SPECIFICATIONS
materialSTEEL AND PLASTIC POLYAMIDE NYLON NUT
nut_height0.204 INCHES NOMINAL IN
pilot_length0.016 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
nominal_thread_size0.112 INCHES IN
thread_quantity_per_inch40
NSN5310-00-208-4854
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 203MS012P001 · 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)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.112 INCHES IN
•
PILOT DIAMETER: 0.189 INCHES NOMINAL IN
•
PILOT LENGTH: 0.016 INCHES NOMINAL IN
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
•
NUT HEIGHT: 0.204 INCHES NOMINAL IN
•
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.112 INCHES IN
PILOT DIAMETER0.189 INCHES NOMINAL IN
PILOT LENGTH0.016 INCHES NOMINAL IN
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT0.204 INCHES NOMINAL IN
THREAD CLASS3B
THREAD QUANTITY PER INCH40
MATERIALSTEEL AND PLASTIC POLYAMIDE NYLON NUT
SUBSTITUTES & CROSS-REFERENCES 3
8141014-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1JA2731H59Reference document
Same NSN cross-reference
Reference document — Secondary reference
79NC1-40Reference 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 203MS012P001?
203MS012P001 is a NUT,SELF-LOCKING,SPLINE.
What parts can replace 203MS012P001?
There are 3 known substitutes for 203MS012P001: 8141014-1, 1JA2731H59, 79NC1-40. Substitute compatibility should be verified for your specific system.
What is the NSN for 203MS012P001?
203MS012P001 is cataloged in the U.S. Government catalog under NSN 5310-00-208-4854. 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.