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Technical Data Sheet
F1648 ✓ 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,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1008 OVERALL, hole_diameter: 0.325 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN, outside_diameter: 0.625 INCHES NOMINAL IN, style_designator: KEY, surface_treatment: CADMIUM OVERALL, material_thickness: 0.0625 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-230-6211, 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
F1648
NSN: 5310-00-230-6211
FSC: 5310
CAGE: 72850 — PUROLATOR PRODUCTS CO DIV MOTOR COMPONENTS, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 1008 OVERALL
hole_diameter0.325 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
outside_diameter0.625 INCHES NOMINAL IN
style_designatorKEY
surface_treatmentCADMIUM OVERALL
material_thickness0.0625 INCHES NOMINAL IN
external_prebent_key_length0.156 INCHES NOMINAL IN
external_straight_key_width0.158 INCHES MINIMUM AND 0.168 INCHES MAXIMUM IN
external_straight_key_length0.125 INCHES NOMINAL IN
overall_distance_including_keys0.6875 INCHES NOMINAL IN
material_document_and_classificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-230-6211
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: F1648 · 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
SURFACE TREATMENT: CADMIUM OVERALL
MATERIAL: STEEL COMP 1008 OVERALL
STYLE DESIGNATOR: KEY
OVERALL DISTANCE INCLUDING KEYS: 0.6875 INCHES NOMINAL IN
EXTERNAL PREBENT KEY LENGTH: 0.156 INCHES NOMINAL IN
OUTSIDE DIAMETER: 0.625 INCHES NOMINAL IN
MATERIAL THICKNESS: 0.0625 INCHES NOMINAL IN
EXTERNAL STRAIGHT KEY LENGTH: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 1008 OVERALL
STYLE DESIGNATORKEY
OVERALL DISTANCE INCLUDING KEYS0.6875 INCHES NOMINAL IN
EXTERNAL PREBENT KEY LENGTH0.156 INCHES NOMINAL IN
OUTSIDE DIAMETER0.625 INCHES NOMINAL IN
MATERIAL THICKNESS0.0625 INCHES NOMINAL IN
EXTERNAL STRAIGHT KEY LENGTH0.125 INCHES NOMINAL IN
HOLE DIAMETER0.325 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
EXTERNAL STRAIGHT KEY WIDTH0.158 INCHES MINIMUM AND 0.168 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
4909Interchangeable
interchangeable cross-reference
interchangeable
361524Interchangeable
interchangeable cross-reference
interchangeable
R128Interchangeable
interchangeable cross-reference
interchangeable
WAUG3400Interchangeable
interchangeable cross-reference
interchangeable
5210-00-540-2568Interchangeable
interchangeable cross-reference
interchangeable
GGG-T-106 TY5CLAST2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F1648?
F1648 is a WASHER,KEY.
What parts can replace F1648?
There are 14 known substitutes for F1648: 4909, 361524, R128 and 11 more. Substitute compatibility should be verified for your specific system.
Is F1648 still available?
F1648 is currently cancelled.
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