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F655F — Technical Data Sheet

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— · 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,SLOTTED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN, outside_diameter: 0.625 INCHES NOMINAL IN, style_designator: SLOTTED, surface_treatment: ZINC OVERALL, material_thickness: 0.050 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System under NSN 5310-00-523-6961, 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
F655F
NSN: 5310-00-523-6961
FSC: 5310
CAGE: 63477 — FEDERAL MOGUL CORP SUB WAGNER BRAKE MOOG AUTOMOTIVE DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
outside_diameter0.625 INCHES NOMINAL IN
style_designatorSLOTTED
surface_treatmentZINC OVERALL
material_thickness0.050 INCHES NOMINAL IN
NSN5310-00-523-6961
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: F655F · 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: STEEL OVERALL
•
STYLE DESIGNATOR: SLOTTED
•
MATERIAL THICKNESS: 0.050 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC OVERALL
•
OUTSIDE DIAMETER: 0.625 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
MATERIALSTEEL OVERALL
STYLE DESIGNATORSLOTTED
MATERIAL THICKNESS0.050 INCHES NOMINAL IN
SURFACE TREATMENTZINC OVERALL
OUTSIDE DIAMETER0.625 INCHES NOMINAL IN
HOLE DIAMETER0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
RF222-004InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
F21995InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
FC655InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
F655InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
4WE72InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
6CFC655InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F655F?
F655F is a WASHER,SLOTTED.
What parts can replace F655F?
There are 7 known substitutes for F655F: RF222-004, F21995, FC655 and 4 more. Substitute compatibility should be verified for your specific system.
Is F655F still available?
F655F 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: September 2026