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Technical Data Sheet
PartsTable / COMPONENT / 745615-3
745615-3 ✓ 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,LOCK is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, hole_diameter: 0.063 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN, outside_diameter: 0.123 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: TIN OVERALL, material_thickness: 0.017 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-271-7448, 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
745615-3
NSN: 5310-00-271-7448
FSC: 5310
CAGE: 96774 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
hole_diameter0.063 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
outside_diameter0.123 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentTIN OVERALL
material_thickness0.017 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
material_document_and_classificationQQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-271-7448
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 745615-3 · 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
•
MATERIAL: COPPER ALLOY OVERALL
•
OUTSIDE DIAMETER: 0.123 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL THICKNESS: 0.017 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.063 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
•
SURFACE TREATMENT: TIN OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
OUTSIDE DIAMETER0.123 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIAL THICKNESS0.017 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
HOLE DIAMETER0.063 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
SURFACE TREATMENTTIN OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
A-A-2710 TY2Interchangeable
interchangeable cross-reference
interchangeable
67520Interchangeable
interchangeable cross-reference
interchangeable
RR-B-500Interchangeable
interchangeable cross-reference
interchangeable
123SEAV10490-195Interchangeable
interchangeable cross-reference
interchangeable
106299Interchangeable
interchangeable cross-reference
interchangeable
745615-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 745615-3?
745615-3 is a WASHER,LOCK.
What parts can replace 745615-3?
There are 6 known substitutes for 745615-3: A-A-2710 TY2, 67520, RR-B-500 and 3 more. Substitute compatibility should be verified for your specific system.
Is 745615-3 still available?
745615-3 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