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Technical Data Sheet
PartsTable / COMPONENT / 7603499
7603499 ✓ 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 1009 OR STEEL COMP 1015 OR STEEL COMP 1020 OVERALL, hole_diameter: 0.515 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN, overall_height: 0.156 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN, outside_diameter: 1.610 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN, style_designator: SPRING TENSION, surface_treatment: ZINC OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-595-7686, 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
7603499
NSN: 5310-00-595-7686
FSC: 5310
CAGE: 18355 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1020 OVERALL
hole_diameter0.515 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
overall_height0.156 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
outside_diameter1.610 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN
style_designatorSPRING TENSION
surface_treatmentZINC OVERALL
material_thickness0.0919 INCHES NOMINAL IN
material_document_and_classificationQQ-S-640-CANC FED SPEC ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationQQ-Z-325,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-595-7686
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7603499 · 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
•
STYLE DESIGNATOR: SPRING TENSION
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-640-CANC FED SPEC ALL MATERIAL RESPONSES OVERALL
•
MATERIAL: STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1020 OVERALL
•
MATERIAL THICKNESS: 0.0919 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.515 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSPRING TENSION
OVERALL HEIGHT0.156 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-640-CANC FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1020 OVERALL
MATERIAL THICKNESS0.0919 INCHES NOMINAL IN
HOLE DIAMETER0.515 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC OVERALL
OUTSIDE DIAMETER1.610 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
11-0345-00Interchangeable
interchangeable cross-reference
interchangeable
11-0345-01Interchangeable
interchangeable cross-reference
interchangeable
11-0345-21Interchangeable
interchangeable cross-reference
interchangeable
53938-000Interchangeable
interchangeable cross-reference
interchangeable
444042Interchangeable
interchangeable cross-reference
interchangeable
23HD588AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7603499?
7603499 is a WASHER,SPRING TENSION.
What parts can replace 7603499?
There are 6 known substitutes for 7603499: 11-0345-00, 11-0345-01, 11-0345-21 and 3 more. Substitute compatibility should be verified for your specific system.
Is 7603499 still available?
7603499 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