PartsTable
Technical Data Sheet
FFW92TYPEAGRADE1CLASSB ✓ 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: 0.061 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN, hole_diameter: 0.250 INCHES NOMINAL IN, heat_treatment: AS FABRICATED, hardness_rating: 94.0 ROCKWELL B MAXIMUM, overall_diameter: 0.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-087-1471, 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
FFW92TYPEAGRADE1CLASSB
NSN: 5310-00-087-1471
FSC: 5310
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thickness0.061 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
hole_diameter0.250 INCHES NOMINAL IN
heat_treatmentAS FABRICATED
hardness_rating94.0 ROCKWELL B MAXIMUM
overall_diameter0.750 INCHES NOMINAL IN
special_featuresDO NOT DUPE TO NSN 5310-00-276-2718; THIS NSN IS FOR PEARL HARBOR USE ONLY; THIS IS A NON-STANDARD UNIT-OF-ISSUE
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
nondefinitive_spec/std_dataA TYPE AND 1 GRADE AND B CLASS
NSN5310-00-087-1471
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: FFW92TYPEAGRADE1CLASSB · 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
CENTER HOLE SHAPE STYLE: ROUND
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
THICKNESS: 0.062 INCHES NOMINAL IN
DEPARTURE FROM CITED DOCUMENT: AS MODIFIED BY ID AND OD DIM.
HOLE DIAMETER: 0.260 INCHES NOMINAL IN
OVERALL DIAMETER: 0.688 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA: A TYPE AND 1 GRADE AND B CLASS
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
THICKNESS0.062 INCHES NOMINAL IN
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY ID AND OD DIM.
HOLE DIAMETER0.260 INCHES NOMINAL IN
OVERALL DIAMETER0.688 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATAA TYPE AND 1 GRADE AND B CLASS
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 316 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
60-28-0723Interchangeable
Same NIIN cross-reference
interchangeable
218017881Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FFW92TYPEAGRADE1CLASSB?
FFW92TYPEAGRADE1CLASSB is a WASHER,FLAT.
What parts can replace FFW92TYPEAGRADE1CLASSB?
There are 2 known substitutes for FFW92TYPEAGRADE1CLASSB: 60-28-0723, 218017881. Substitute compatibility should be verified for your specific system.
Is FFW92TYPEAGRADE1CLASSB still available?
FFW92TYPEAGRADE1CLASSB is currently cancelled.
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