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PartsTable / COMPONENT / FF-W-92B TYPE A GRADE 1 CLASS A
FF-W-92B TYPE A GRADE 1 CLASS A ✓ 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 OVERALL, thickness: 0.031 INCHES NOMINAL IN, hole_diameter: 0.440 INCHES NOMINAL IN, overall_diameter: 0.625 INCHES NOMINAL IN, surface_treatment: ZINC OVERALL, peripheral_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-576-2351, 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
FF-W-92B TYPE A GRADE 1 CLASS A
NSN: 5310-00-576-2351
FSC: 5310
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.031 INCHES NOMINAL IN
hole_diameter0.440 INCHES NOMINAL IN
overall_diameter0.625 INCHES NOMINAL IN
surface_treatmentZINC OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-576-2351
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: FF-W-92B TYPE A GRADE 1 CLASS A · 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
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.440 INCHES NOMINAL IN
•
THICKNESS: 0.031 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL OVERALL
HOLE DIAMETER0.440 INCHES NOMINAL IN
THICKNESS0.031 INCHES NOMINAL IN
SURFACE TREATMENTZINC OVERALL
CENTER HOLE SHAPE STYLEROUND
OVERALL DIAMETER0.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
8567Interchangeable
interchangeable cross-reference
interchangeable
8317-11630Interchangeable
interchangeable cross-reference
interchangeable
123500Interchangeable
interchangeable cross-reference
interchangeable
E8714T51MInterchangeable
interchangeable cross-reference
interchangeable
E8567T51MInterchangeable
interchangeable cross-reference
interchangeable
E8567M51MInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-W-92B TYPE A GRADE 1 CLASS A?
FF-W-92B TYPE A GRADE 1 CLASS A is a WASHER,FLAT.
What parts can replace FF-W-92B TYPE A GRADE 1 CLASS A?
There are 10 known substitutes for FF-W-92B TYPE A GRADE 1 CLASS A: 8567, 8317-11630, 123500 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-W-92B TYPE A GRADE 1 CLASS A?
FF-W-92B TYPE A GRADE 1 CLASS A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-576-2351. 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