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CFW1 ✓ 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: COPPER ALLOY OVERALL, thickness: 0.020 INCHES NOMINAL IN, hole_diameter: 0.076 INCHES NOMINAL IN, overall_diameter: 0.187 INCHES NOMINAL IN, surface_treatment: CADMIUM OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-984-1043, 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
CFW1
NSN: 5310-00-984-1043
FSC: 5310
CAGE: 32212 — OLYMPUS AMERICA INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thickness0.020 INCHES NOMINAL IN
hole_diameter0.076 INCHES NOMINAL IN
overall_diameter0.187 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-984-1043
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: CFW1 · 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
•
PERIPHERAL SHAPE STYLE: ROUND
•
SURFACE TREATMENT: CADMIUM OVERALL
•
THICKNESS: 0.020 INCHES NOMINAL IN
•
OVERALL DIAMETER: 0.187 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.076 INCHES NOMINAL IN
•
CENTER HOLE SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTCADMIUM OVERALL
THICKNESS0.020 INCHES NOMINAL IN
OVERALL DIAMETER0.187 INCHES NOMINAL IN
HOLE DIAMETER0.076 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
850693Interchangeable
interchangeable cross-reference
interchangeable
27-539Interchangeable
interchangeable cross-reference
interchangeable
MCA6/1000-P65P67-20A0F1MInterchangeable
interchangeable cross-reference
interchangeable
850693VMInterchangeable
interchangeable cross-reference
interchangeable
904902-3Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CFW1?
CFW1 is a WASHER,FLAT.
What parts can replace CFW1?
There are 5 known substitutes for CFW1: 850693, 27-539, MCA6/1000-P65P67-20A0F1M and 2 more. Substitute compatibility should be verified for your specific system.
Is CFW1 still available?
CFW1 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026