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EPA21410-094 — WASHER,CONVEX

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

EPA21410-094: WASHER,CONVEX.

The WASHER,CONVEX is a the manufacturer industrial component. Key specifications include material: STEEL COMP M OVERALL, hole_diameter: 1.877 INCHES MINIMUM AND 1.882 INCHES MAXIMUM IN, outside_diameter: 2.750 INCHES NOMINAL IN, special_features: 0.062 IN. X 45 DEG CHAMFER BOTH ENDS OF I.D.

IN, style_designator: CONVEX, material_thickness: 0.438 INCHES NOMINAL IN. This part is cataloged in the U.S. Government catalog under NSN 5310-00-930-1499, 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
EPA21410-094
NSN: 5310-00-930-1499
FSC: 5310 — Nuts and Washers
CAGE: F3014 — NAVAL GROUP SITE DE BREST (FRA)
SPECIFICATIONS
materialSTEEL COMP M OVERALL
hole_diameter1.877 INCHES MINIMUM AND 1.882 INCHES MAXIMUM IN
outside_diameter2.750 INCHES NOMINAL IN
special_features0.062 IN. X 45 DEG CHAMFER BOTH ENDS OF I.D. IN
style_designatorCONVEX
material_thickness0.438 INCHES NOMINAL IN
material_document_and_classificationMIL-S-20166 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-930-1499
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: EPA21410-094 · 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: CONVEX
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-20166 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 2.750 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.438 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP M OVERALL
•
HOLE DIAMETER: 1.877 INCHES MINIMUM AND 1.882 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORCONVEX
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-20166 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER2.750 INCHES NOMINAL IN
MATERIAL THICKNESS0.438 INCHES NOMINAL IN
SPECIAL FEATURES0.062 IN. X 45 DEG CHAMFER BOTH ENDS OF I.D. IN
MATERIALSTEEL COMP M OVERALL
HOLE DIAMETER1.877 INCHES MINIMUM AND 1.882 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
41443&1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is EPA21410-094?
EPA21410-094 is a WASHER,CONVEX.
What parts can replace EPA21410-094?
There is 1 known substitute for EPA21410-094: 41443&1. Substitute compatibility should be verified for your specific system.
What is the NSN for EPA21410-094?
EPA21410-094 is cataloged in the U.S. Government catalog under NSN 5310-00-930-1499. 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.