PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 373-8500-00
373-8500-00 ✓ 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 410 OVERALL, hole_diameter: 0.089 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN, outside_diameter: 0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN, style_designator: FLAT INTERNAL TEETH, material_thickness: 0.012 INCHES NOMINAL IN, material_document_and_classification: AISI NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-595-7239, 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
373-8500-00
NSN: 5310-00-595-7239
FSC: 5310
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 410 OVERALL
hole_diameter0.089 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
outside_diameter0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
style_designatorFLAT INTERNAL TEETH
material_thickness0.012 INCHES NOMINAL IN
material_document_and_classificationAISI NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-595-7239
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 373-8500-00 · 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
•
MATERIAL THICKNESS: 0.012 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.089 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 410 OVERALL
•
STYLE DESIGNATOR: FLAT INTERNAL TEETH
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.012 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
HOLE DIAMETER0.089 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
MATERIALSTEEL COMP 410 OVERALL
STYLE DESIGNATORFLAT INTERNAL TEETH
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
170200Interchangeable
interchangeable cross-reference
interchangeable
10-418Interchangeable
interchangeable cross-reference
interchangeable
SVM-RInterchangeable
interchangeable cross-reference
interchangeable
2100-2061Interchangeable
interchangeable cross-reference
interchangeable
3450370-5Interchangeable
interchangeable cross-reference
interchangeable
RW99222PC14Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 373-8500-00?
373-8500-00 is a WASHER,LOCK.
What parts can replace 373-8500-00?
There are 19 known substitutes for 373-8500-00: 170200, 10-418, SVM-R and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 373-8500-00?
373-8500-00 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-595-7239. 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