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PartsTable / COMPONENT / 21111-38030
21111-38030 ✓ 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 WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1060 OVERALL, hole_diameter: 0.115 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN, outside_diameter: 0.202 INCHES NOMINAL IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: CADMIUM OVERALL, material_thickness: 0.020 INCHES MINIMUM AND 0.026 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 5310-00-687-6662, 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
21111-38030
NSN: 5310-00-687-6662
FSC: 5310
CAGE: F0057 — THALES SIX GTS FRANCE SAS (FRA)
SPECIFICATIONS
materialSTEEL COMP 1060 OVERALL
hole_diameter0.115 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN
outside_diameter0.202 INCHES NOMINAL IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentCADMIUM OVERALL
material_thickness0.020 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
material_document_and_classificationAMS 7240 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-687-6662
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 21111-38030 · 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
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL THICKNESS: 0.020 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.202 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.115 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 1060 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 7240 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIAL THICKNESS0.020 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.202 INCHES NOMINAL IN
HOLE DIAMETER0.115 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1060 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 7240 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
107125Interchangeable
interchangeable cross-reference
interchangeable
471 1/4 GREENInterchangeable
interchangeable cross-reference
interchangeable
11436969-15Interchangeable
interchangeable cross-reference
interchangeable
1071-.25Interchangeable
interchangeable cross-reference
interchangeable
B3DIN127NRSTInterchangeable
Same NIIN cross-reference
interchangeable
MS122051Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21111-38030?
21111-38030 is a WASHER,LOCK.
What parts can replace 21111-38030?
There are 7 known substitutes for 21111-38030: 107125, 471 1/4 GREEN, 11436969-15 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21111-38030?
21111-38030 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-687-6662. 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