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0204SMCA-ZZZZ — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

0204SMCA-ZZZZ: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 18.8 OVERALL, hole_diameter: 0.114 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN, outside_diameter: 0.209 INCHES MAXIMUM IN, style_designator: SPLIT HELICAL-RIGHT HAND, material_thickness: 0.025 INCHES MINIMUM IN, end_item_identification: 6625-01-618-2203. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-690-5679, 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
0204SMCA-ZZZZ
NSN: 5310-01-690-5679
FSC: 5310 — Nuts and Washers
CAGE: 1SE17 — ENDRIES INTERNATIONAL, INC. DBA SERVTONICS, AN ENDRIES INTERNATIONAL, INC. (USA)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 18.8 OVERALL
hole_diameter0.114 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
outside_diameter0.209 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness0.025 INCHES MINIMUM IN
end_item_identification6625-01-618-2203
part_name_assigned_by_controlling_agencySPLIT LOCK WASHER NO.4
NSN5310-01-690-5679
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 0204SMCA-ZZZZ · 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
•
OUTSIDE DIAMETER: 0.209 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.025 INCHES MINIMUM IN
•
MATERIAL: STEEL PROPERTY CLASS 18.8 OVERALL
•
HOLE DIAMETER: 0.114 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
OUTSIDE DIAMETER0.209 INCHES MAXIMUM IN
MATERIAL THICKNESS0.025 INCHES MINIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYSPLIT LOCK WASHER NO.4
END ITEM IDENTIFICATION6625-01-618-2203
MATERIALSTEEL PROPERTY CLASS 18.8 OVERALL
HOLE DIAMETER0.114 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
3-900-391Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 0204SMCA-ZZZZ?
0204SMCA-ZZZZ is a WASHER,LOCK.
What parts can replace 0204SMCA-ZZZZ?
There is 1 known substitute for 0204SMCA-ZZZZ: 3-900-391. Substitute compatibility should be verified for your specific system.
What is the NSN for 0204SMCA-ZZZZ?
0204SMCA-ZZZZ is cataloged in the U.S. Government catalog under NSN 5310-01-690-5679. 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.