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PartsTable / COMPONENT / G386C6
G386C6 ✓ 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,FINISHING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, hole_diameter: 0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN, overall_height: 0.094 INCHES NOMINAL IN, outside_diameter: 0.438 INCHES NOMINAL IN, style_designator: FINISHING, surface_treatment: NICKEL OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-726-9348, 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
G386C6
NSN: 5310-00-726-9348
FSC: 5310
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
hole_diameter0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
overall_height0.094 INCHES NOMINAL IN
outside_diameter0.438 INCHES NOMINAL IN
style_designatorFINISHING
surface_treatmentNICKEL OVERALL
material_thickness0.014 INCHES NOMINAL IN
NSN5310-00-726-9348
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: G386C6 · 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: 0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
•
SURFACE TREATMENT: NICKEL OVERALL
•
STYLE DESIGNATOR: FINISHING
•
MATERIAL: COPPER ALLOY OVERALL
•
MATERIAL THICKNESS: 0.014 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.094 INCHES NOMINAL IN
HOLE DIAMETER0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
SURFACE TREATMENTNICKEL OVERALL
STYLE DESIGNATORFINISHING
MATERIALCOPPER ALLOY OVERALL
MATERIAL THICKNESS0.014 INCHES NOMINAL IN
OUTSIDE DIAMETER0.438 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
C192Interchangeable
interchangeable cross-reference
interchangeable
NAS391B6PInterchangeable
interchangeable cross-reference
interchangeable
17454Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G386C6?
G386C6 is a WASHER,FINISHING.
What parts can replace G386C6?
There are 3 known substitutes for G386C6: C192, NAS391B6P, 17454. Substitute compatibility should be verified for your specific system.
Is G386C6 still available?
G386C6 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