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Technical Data Sheet
PartsTable / COMPONENT / 203-1201P3
203-1201P3 ✓ 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,SELF-LOCKING,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X NUT, nut_style: CLINCH, nut_height: 0.117 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN, lubrication: SOLUBLE LUBRICANT, temp_rating: 350.0 FAHRENHEIT NOMINAL DEGF, nut_diameter: 0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-828-5457, 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
203-1201P3
NSN: 5310-00-828-5457
FSC: 5310
CAGE: 3B150 — RAYTHEON COMPANY DBA RAYTHEON CO (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X NUT
nut_styleCLINCH
nut_height0.117 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
lubricationSOLUBLE LUBRICANT
temp_rating350.0 FAHRENHEIT NOMINAL DEGF
nut_diameter0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
pilot_length0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.158 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
NSN5310-00-828-5457
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 203-1201P3 · 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
•
PILOT LENGTH: 0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
•
NUT STYLE: CLINCH
•
NUT COUNTERBORE DEPTH: 0.040 INCHES NOMINAL NUT IN
•
MATERIAL: STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X NUT
•
NUT DIAMETER: 0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
•
LUBRICATION: SOLUBLE LUBRICANT
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-M-20693 MIL SPEC 1ST MATERIAL RESPONSE LOCKING INSERT
TECHNICAL CHARACTERISTICS (FLIS)
PILOT LENGTH0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
NUT STYLECLINCH
NUT COUNTERBORE DEPTH0.040 INCHES NOMINAL NUT IN
MATERIALSTEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X NUT
NUT DIAMETER0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
LUBRICATIONSOLUBLE LUBRICANT
MATERIALPLASTIC POLYHEXAMETHYLENE AMIDE OR PLASTIC POLYCAPROLACTAM LOCKING INSERT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-M-20693 MIL SPEC 1ST MATERIAL RESPONSE LOCKING INSERT
NUT HEIGHT0.117 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5604 ASSN STD 2ND MATERIAL RESPONSE NUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
2000691Interchangeable
interchangeable cross-reference
interchangeable
1115065Interchangeable
interchangeable cross-reference
interchangeable
128712HInterchangeable
interchangeable cross-reference
interchangeable
10-0028-1Interchangeable
interchangeable cross-reference
interchangeable
CB184F-135Interchangeable
interchangeable cross-reference
interchangeable
0111-GG3-013Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 203-1201P3?
203-1201P3 is a NUT,SELF-LOCKING,CLINCH.
What parts can replace 203-1201P3?
There are 12 known substitutes for 203-1201P3: 2000691, 1115065, 128712H and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 203-1201P3?
203-1201P3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-828-5457. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026