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PartsTable / COMPONENT / ES2081-03
ES2081-03 ✓ 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,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1074 OVERALL, hole_diameter: 0.255 INCHES NOMINAL IN, overall_height: 0.034 INCHES NOMINAL IN, outside_diameter: 0.500 INCHES NOMINAL IN, style_designator: SPRING TENSION, material_thickness: 0.018 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-817-1011, 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
ES2081-03
NSN: 5310-00-817-1011
FSC: 5310
CAGE: 20418 — DRS SUSTAINMENT SYSTEMS, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 1074 OVERALL
hole_diameter0.255 INCHES NOMINAL IN
overall_height0.034 INCHES NOMINAL IN
outside_diameter0.500 INCHES NOMINAL IN
style_designatorSPRING TENSION
material_thickness0.018 INCHES NOMINAL IN
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-817-1011
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ES2081-03 · 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 DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL THICKNESS: 0.018 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.255 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1074 OVERALL
•
STYLE DESIGNATOR: SPRING TENSION
•
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.034 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.018 INCHES NOMINAL IN
HOLE DIAMETER0.255 INCHES NOMINAL IN
MATERIALSTEEL COMP 1074 OVERALL
STYLE DESIGNATORSPRING TENSION
OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
50018Interchangeable
interchangeable cross-reference
interchangeable
12520Interchangeable
interchangeable cross-reference
interchangeable
G395808-8Interchangeable
interchangeable cross-reference
interchangeable
BA99420Interchangeable
interchangeable cross-reference
interchangeable
543425Interchangeable
interchangeable cross-reference
interchangeable
R1764Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ES2081-03?
ES2081-03 is a WASHER,SPRING TENSION.
What parts can replace ES2081-03?
There are 16 known substitutes for ES2081-03: 50018, 12520, G395808-8 and 13 more. Substitute compatibility should be verified for your specific system.
Is ES2081-03 still available?
ES2081-03 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026