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PartsTable / COMPONENT / FFW92TYPEAGRADE2CLASSB
FFW92TYPEAGRADE2CLASSB ✓ 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: STEEL CORROSION RESISTING OVERALL, thickness: 0.036 INCHES NOMINAL IN, hole_diameter: 0.200 INCHES NOMINAL IN, heat_treatment: ANNEALED, hardness_rating: 94.0 ROCKWELL B MAXIMUM, overall_diameter: 0.438 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 5310-00-184-8599, 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
FFW92TYPEAGRADE2CLASSB
NSN: 5310-00-184-8599
FSC: 5310
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thickness0.036 INCHES NOMINAL IN
hole_diameter0.200 INCHES NOMINAL IN
heat_treatmentANNEALED
hardness_rating94.0 ROCKWELL B MAXIMUM
overall_diameter0.438 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
nondefinitive_spec/std_dataA TYPE AND 2 GRADE AND B CLASS
departure_from_cited_designatorAS MODIFIED BY ID
NSN5310-00-184-8599
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: FFW92TYPEAGRADE2CLASSB · 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
•
HOLE DIAMETER: 0.766 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OVERALL DIAMETER: 1.312 INCHES NOMINAL IN
•
THICKNESS: 0.094 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 304 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.766 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL DIAMETER1.312 INCHES NOMINAL IN
THICKNESS0.094 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 304 OVERALL
CENTER HOLE SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
FFW92TYPEAGRADE1CLASSBInterchangeable
Same NIIN cross-reference
interchangeable
12Z22PC478Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FFW92TYPEAGRADE2CLASSB?
FFW92TYPEAGRADE2CLASSB is a WASHER,FLAT.
What parts can replace FFW92TYPEAGRADE2CLASSB?
There are 2 known substitutes for FFW92TYPEAGRADE2CLASSB: FFW92TYPEAGRADE1CLASSB, 12Z22PC478. Substitute compatibility should be verified for your specific system.
What is the NSN for FFW92TYPEAGRADE2CLASSB?
FFW92TYPEAGRADE2CLASSB is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-184-8599. 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