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PartsTable / COMPONENT / FFW84CLASSASTYLE1
FFW84CLASSASTYLE1 ✓ 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,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.030 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN, hole_diameter: 1.398 INCHES MINIMUM AND 1.446 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM, outside_diameter: 2.183 INCHES NOMINAL IN, overall_diameter: 0.225 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-010-6500, 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
FFW84CLASSASTYLE1
NSN: 5310-00-010-6500
FSC: 5310
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.030 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
hole_diameter1.398 INCHES MINIMUM AND 1.446 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
outside_diameter2.183 INCHES NOMINAL IN
overall_diameter0.225 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
special_featuresSURFACE TREATMENT BLUED
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentCADMIUM OR ZINC OVERALL
material_thickness0.264 INCHES MINIMUM AND 0.284 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
NSN5310-00-010-6500
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: FFW84CLASSASTYLE1 · 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 THICKNESS: 0.099 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: 1 STYLE AND A CLASS
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
•
HOLE DIAMETER: 0.509 INCHES MINIMUM AND 0.529 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.877 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL: STEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1064 OR STEEL COMP 1065 OR STEEL COMP 1566 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1071 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.099 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA1 STYLE AND A CLASS
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.509 INCHES MINIMUM AND 0.529 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.877 INCHES MAXIMUM IN
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIALSTEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1064 OR STEEL COMP 1065 OR STEEL COMP 1566 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1071 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
6-10331Interchangeable
interchangeable cross-reference
interchangeable
62134-12Interchangeable
interchangeable cross-reference
interchangeable
TT50X5Interchangeable
interchangeable cross-reference
interchangeable
X721Interchangeable
interchangeable cross-reference
interchangeable
9150583Interchangeable
interchangeable cross-reference
interchangeable
G10-7115Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FFW84CLASSASTYLE1?
FFW84CLASSASTYLE1 is a WASHER,LOCK.
What parts can replace FFW84CLASSASTYLE1?
There are 22 known substitutes for FFW84CLASSASTYLE1: 6-10331, 62134-12, TT50X5 and 19 more. Substitute compatibility should be verified for your specific system.
Is FFW84CLASSASTYLE1 still available?
FFW84CLASSASTYLE1 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