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71073 ✓ 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,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1074 OVERALL, hole_diameter: 0.190 INCHES NOMINAL IN, overall_height: 0.027 INCHES NOMINAL IN, outside_diameter: 0.375 INCHES NOMINAL IN, style_designator: SPRING TENSION, surface_treatment: CADMIUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-286-8869, 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
71073
NSN: 5310-00-286-8869
FSC: 5310
CAGE: 64959 — AMERICAN TELEPHONE AND TELEGRAPH CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1074 OVERALL
hole_diameter0.190 INCHES NOMINAL IN
overall_height0.027 INCHES NOMINAL IN
outside_diameter0.375 INCHES NOMINAL IN
style_designatorSPRING TENSION
surface_treatmentCADMIUM OVERALL
material_thickness0.015 INCHES NOMINAL IN
material_document_and_classificationMIL-S-17919 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-286-8869
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 71073 · 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: 0.093 INCHES NOMINAL IN
•
OVERALL DIAMETER: 0.203 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
FEATURES PROVIDED: CASEHARDENED
•
THICKNESS: 0.020 INCHES NOMINAL IN
•
CENTER HOLE SHAPE STYLE: ROUND
•
SURFACE TREATMENT: NICKEL OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.093 INCHES NOMINAL IN
OVERALL DIAMETER0.203 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND
FEATURES PROVIDEDCASEHARDENED
THICKNESS0.020 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND
SURFACE TREATMENTNICKEL OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
71073Interchangeable
interchangeable cross-reference
interchangeable
375-15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 71073?
71073 is a WASHER,FLAT.
What parts can replace 71073?
There are 2 known substitutes for 71073: 71073, 375-15. Substitute compatibility should be verified for your specific system.
Is 71073 still available?
71073 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