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B18212HRCZ100 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

B18212HRCZ100: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 10.13 MILLIMETERS MINIMUM AND 10.38 MILLIMETERS MAXIMUM MM, outside_diameter: 17.83 MILLIMETERS MAXIMUM MM, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: ZINC OVERALL, material_thickness: 2.39 MILLIMETERS MINIMUM MM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-478-5622, 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
B18212HRCZ100
NSN: 5310-01-478-5622
FSC: 5310 — Nuts and Washers
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter10.13 MILLIMETERS MINIMUM AND 10.38 MILLIMETERS MAXIMUM MM
outside_diameter17.83 MILLIMETERS MAXIMUM MM
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentZINC OVERALL
material_thickness2.39 MILLIMETERS MINIMUM MM
end_item_identification6115-01-431-3063;GENERATOR SET,DIESEL ENGINE
surface_treatment_document_and_classificationASTM B 633,FE/ZN,TYPE II ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-478-5622
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: B18212HRCZ100 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B 633,FE/ZN,TYPE II ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
OUTSIDE DIAMETER: 17.83 MILLIMETERS MAXIMUM MM
•
MATERIAL THICKNESS: 2.39 MILLIMETERS MINIMUM MM
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 10.13 MILLIMETERS MINIMUM AND 10.38 MILLIMETERS MAXIMUM MM
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B 633,FE/ZN,TYPE II ASSN STD SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
OUTSIDE DIAMETER17.83 MILLIMETERS MAXIMUM MM
MATERIAL THICKNESS2.39 MILLIMETERS MINIMUM MM
SURFACE TREATMENTZINC OVERALL
END ITEM IDENTIFICATION6115-01-431-3063;GENERATOR SET,DIESEL ENGINE
MATERIALSTEEL OVERALL
HOLE DIAMETER10.13 MILLIMETERS MINIMUM AND 10.38 MILLIMETERS MAXIMUM MM
SUBSTITUTES & CROSS-REFERENCES 1
B18.21.2MReference 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 B18212HRCZ100?
B18212HRCZ100 is a WASHER,LOCK.
What parts can replace B18212HRCZ100?
There is 1 known substitute for B18212HRCZ100: B18.21.2M. Substitute compatibility should be verified for your specific system.
What is the NSN for B18212HRCZ100?
B18212HRCZ100 is cataloged in the U.S. Government catalog under NSN 5310-01-478-5622. 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.