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ER90408 ✓ 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 PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, first_end_style: SQUARE, pin_overall_length: 0.845 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN, pin_overall_diameter: 0.1520 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM IN, material_document_and_classification: COMP 1112 ASSN STD SINGLE MATERIAL RESPONSE OVERALL, second_end_relationship_with_first_end: IDENTICAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-263-8995, 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
ER90408
NSN: 5315-00-263-8995
FSC: 5315
CAGE: 81118 — EATON CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
first_end_styleSQUARE
pin_overall_length0.845 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN
pin_overall_diameter0.1520 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM IN
material_document_and_classificationCOMP 1112 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
NSN5315-00-263-8995
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ER90408 · 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
•
FIRST END STYLE: SQUARE
•
MATERIAL: STEEL OVERALL
•
PIN OVERALL DIAMETER: 0.1520 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: COMP 1112 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
PIN OVERALL LENGTH: 0.845 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END STYLESQUARE
MATERIALSTEEL OVERALL
PIN OVERALL DIAMETER0.1520 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONCOMP 1112 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
PIN OVERALL LENGTH0.845 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
R3032BInterchangeable
interchangeable cross-reference
interchangeable
B305Interchangeable
interchangeable cross-reference
interchangeable
2L-8058Interchangeable
interchangeable cross-reference
interchangeable
330964Interchangeable
Same NIIN cross-reference
interchangeable
GPN6684Interchangeable
Same NIIN cross-reference
interchangeable
GPW6684Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ER90408?
ER90408 is a PIN,STRAIGHT,HEADLESS.
What parts can replace ER90408?
There are 6 known substitutes for ER90408: R3032B, B305, 2L-8058 and 3 more. Substitute compatibility should be verified for your specific system.
Is ER90408 still available?
ER90408 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