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PartsTable / COMPONENT / 0-521-215
0-521-215 ✓ 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 COMP 303 OR COPPER ALLOY OVERALL, first_end_style: SQUARE, pin_overall_length: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, pin_overall_diameter: 0.0620 INCHES MINIMUM AND 0.0640 INCHES MAXIMUM IN, material_document_and_classification: AISI ASSN STD 1ST MATERIAL RESPONSE OVERALL, second_end_relationship_with_first_end: IDENTICAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-291-8529, 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
0-521-215
NSN: 5315-00-291-8529
FSC: 5315
CAGE: 04577 — MISSION SYSTEMS ORCHARD PARK INC (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OR COPPER ALLOY OVERALL
first_end_styleSQUARE
pin_overall_length0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
pin_overall_diameter0.0620 INCHES MINIMUM AND 0.0640 INCHES MAXIMUM IN
material_document_and_classificationAISI ASSN STD 1ST MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
NSN5315-00-291-8529
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 0-521-215 · 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
•
PIN OVERALL DIAMETER: 0.0620 INCHES MINIMUM AND 0.0640 INCHES MAXIMUM IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD 1ST MATERIAL RESPONSE OVERALL
•
FIRST END STYLE: SQUARE
•
PIN OVERALL LENGTH: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 303 OR COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
PIN OVERALL DIAMETER0.0620 INCHES MINIMUM AND 0.0640 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD 1ST MATERIAL RESPONSE OVERALL
FIRST END STYLESQUARE
PIN OVERALL LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
MATERIALSTEEL COMP 303 OR COPPER ALLOY OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
SCC84598Interchangeable
interchangeable cross-reference
interchangeable
PEI6402Interchangeable
interchangeable cross-reference
interchangeable
192001Interchangeable
interchangeable cross-reference
interchangeable
3011-215Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0-521-215?
0-521-215 is a PIN,STRAIGHT,HEADLESS.
What parts can replace 0-521-215?
There are 4 known substitutes for 0-521-215: SCC84598, PEI6402, 192001 and 1 more. Substitute compatibility should be verified for your specific system.
Is 0-521-215 still available?
0-521-215 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