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PartsTable / COMPONENT / 2190-0037
2190-0037 ✓ 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 OVERALL, hole_diameter: 0.512 INCHES MINIMUM AND 0.529 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES ALL SURFACES, outside_diameter: 0.774 INCHES MINIMUM AND 0.789 INCHES MAXIMUM IN, style_designator: FLAT INTERNAL TEETH, surface_treatment: CADMIUM 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 5310-00-253-8224, 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
2190-0037
NSN: 5310-00-253-8224
FSC: 5310
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.512 INCHES MINIMUM AND 0.529 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES ALL SURFACES
outside_diameter0.774 INCHES MINIMUM AND 0.789 INCHES MAXIMUM IN
style_designatorFLAT INTERNAL TEETH
surface_treatmentCADMIUM OVERALL
material_thickness0.010 INCHES NOMINAL IN
NSN5310-00-253-8224
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2190-0037 · 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: FLAT INTERNAL TEETH
•
HOLE DIAMETER: 0.512 INCHES MINIMUM AND 0.529 INCHES MAXIMUM IN
•
SURFACE FINISH: 63.0 MICROINCHES ALL SURFACES
•
MATERIAL THICKNESS: 0.010 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.774 INCHES MINIMUM AND 0.789 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORFLAT INTERNAL TEETH
HOLE DIAMETER0.512 INCHES MINIMUM AND 0.529 INCHES MAXIMUM IN
SURFACE FINISH63.0 MICROINCHES ALL SURFACES
MATERIAL THICKNESS0.010 INCHES NOMINAL IN
OUTSIDE DIAMETER0.774 INCHES MINIMUM AND 0.789 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
MIL-S-001222Interchangeable
interchangeable cross-reference
interchangeable
5305PL1450724Interchangeable
interchangeable cross-reference
interchangeable
2DD125Interchangeable
interchangeable cross-reference
interchangeable
1224008Interchangeable
interchangeable cross-reference
interchangeable
2166PC111Interchangeable
interchangeable cross-reference
interchangeable
122408Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2190-0037?
2190-0037 is a WASHER,LOCK.
What parts can replace 2190-0037?
There are 9 known substitutes for 2190-0037: MIL-S-001222, 5305PL1450724, 2DD125 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2190-0037?
2190-0037 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-253-8224. 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