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2552485 ✓ 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: COPPER ALLOY OVERALL, hole_diameter: 0.142 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN, overall_height: 0.062 INCHES NOMINAL IN, outside_diameter: 0.383 INCHES NOMINAL IN, surface_treatment: SILVER OVERALL, material_thickness: 0.016 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-527-3620, 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
2552485
NSN: 5310-00-527-3620
FSC: 5310
CAGE: 88277 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
hole_diameter0.142 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
overall_height0.062 INCHES NOMINAL IN
outside_diameter0.383 INCHES NOMINAL IN
surface_treatmentSILVER OVERALL
material_thickness0.016 INCHES NOMINAL IN
material_document_and_classificationQQ-C-533 TEMPER A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-527-3620
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2552485 · 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
•
HOLE DIAMETER: 0.142 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.016 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-533 TEMPER A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: COPPER ALLOY OVERALL
•
OUTSIDE DIAMETER: 0.383 INCHES NOMINAL IN
•
SURFACE TREATMENT: SILVER OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.062 INCHES NOMINAL IN
HOLE DIAMETER0.142 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
MATERIAL THICKNESS0.016 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-533 TEMPER A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
OUTSIDE DIAMETER0.383 INCHES NOMINAL IN
SURFACE TREATMENTSILVER OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
401751Interchangeable
interchangeable cross-reference
interchangeable
40175-01Interchangeable
interchangeable cross-reference
interchangeable
61A107B69Interchangeable
Same NIIN cross-reference
interchangeable
60A52B114Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2552485?
2552485 is a WASHER,SPRING TENSION.
What parts can replace 2552485?
There are 4 known substitutes for 2552485: 401751, 40175-01, 61A107B69 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2552485?
2552485 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-527-3620. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026