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PartsTable / COMPONENT / FFW84CLASSESTYLE1
FFW84CLASSESTYLE1 ✓ 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: COPPER ALLOY OVERALL, hole_diameter: 0.319 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN, hardness_rating: 90.0 ROCKWELL B MINIMUM, outside_diameter: 0.438 INCHES NOMINAL IN, style_designator: SPLIT HELICAL-RIGHT HAND, material_thickness: 0.0625 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-596-7689, 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
FFW84CLASSESTYLE1
NSN: 5310-00-596-7689
FSC: 5310
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
hole_diameter0.319 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN
hardness_rating90.0 ROCKWELL B MINIMUM
outside_diameter0.438 INCHES NOMINAL IN
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness0.0625 INCHES NOMINAL IN
nondefinitive_spec/std_dataE CLASS AND 1 OR 2 STYLE
departure_from_cited_designatorAS MODIFIED BY OD,MATERIAL THK RQMT
NSN5310-00-596-7689
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: FFW84CLASSESTYLE1 · 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
•
OUTSIDE DIAMETER: 0.438 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.0625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
HARDNESS RATING: 90.0 ROCKWELL B MINIMUM
•
MATERIAL: COPPER ALLOY OVERALL
•
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY OD,MATERIAL THK RQMT
•
NONDEFINITIVE SPEC/STD DATA: E CLASS AND 1 OR 2 STYLE
•
HOLE DIAMETER: 0.319 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.438 INCHES NOMINAL IN
MATERIAL THICKNESS0.0625 INCHES NOMINAL IN
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
HARDNESS RATING90.0 ROCKWELL B MINIMUM
MATERIALCOPPER ALLOY OVERALL
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY OD,MATERIAL THK RQMT
NONDEFINITIVE SPEC/STD DATAE CLASS AND 1 OR 2 STYLE
HOLE DIAMETER0.319 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
FFW84CLASSESTYLE2Interchangeable
interchangeable cross-reference
interchangeable
310008000Interchangeable
interchangeable cross-reference
interchangeable
HP799P10MInterchangeable
interchangeable cross-reference
interchangeable
107222Interchangeable
interchangeable cross-reference
interchangeable
93620-162Interchangeable
interchangeable cross-reference
interchangeable
323605PC12Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FFW84CLASSESTYLE1?
FFW84CLASSESTYLE1 is a WASHER,LOCK.
What parts can replace FFW84CLASSESTYLE1?
There are 18 known substitutes for FFW84CLASSESTYLE1: FFW84CLASSESTYLE2, 310008000, HP799P10M and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FFW84CLASSESTYLE1?
FFW84CLASSESTYLE1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-596-7689. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026