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3515-20-11 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3515-20-11: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN, overall_height: 0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN, outside_diameter: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN, surface_treatment: PHOSPHATE OVERALL, material_thickness: 0.015 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-260-4939, 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
3515-20-11
NSN: 5310-01-260-4939
FSC: 5310 — Nuts and Washers
CAGE: 78189 — ITW SHAKEPROOF AUTOMOTIVE PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
overall_height0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
outside_diameter0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
surface_treatmentPHOSPHATE OVERALL
material_thickness0.015 INCHES NOMINAL IN
NSN5310-01-260-4939
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3515-20-11 · 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
•
OUTSIDE DIAMETER: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.015 INCHES NOMINAL IN
•
COLOR: BLACK OVERALL
•
SURFACE TREATMENT: PHOSPHATE OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
MATERIAL THICKNESS0.015 INCHES NOMINAL IN
COLORBLACK OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
12322579Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 3515-20-11?
3515-20-11 is a WASHER,SPRING TENSION.
What parts can replace 3515-20-11?
There is 1 known substitute for 3515-20-11: 12322579. Substitute compatibility should be verified for your specific system.
What is the NSN for 3515-20-11?
3515-20-11 is cataloged in the U.S. Government catalog under NSN 5310-01-260-4939. 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.