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FFW92A — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

FFW92A: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include width: 1.000 INCHES NOMINAL IN, material: STEEL COMP 4130 OVERALL, thickness: 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN, hole_diameter: 0.514 INCHES MINIMUM AND 0.524 INCHES MAXIMUM IN, heat_treatment: AS FABRICATED, hardness_rating: 34.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-044-6188, 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
FFW92A
NSN: 5310-00-044-6188
NIINs: 000446188, 001115612, 001343928, 001488884, 001584585, 001913933, 001918843, 001941539, 001975304, 002022807, 002092199, 002094012, 002095336, 002141422, 002756665, 002761199, 002851522, 002989190, 003169040, 003311996, 004022778, 004231482, 004488196, 004488200, 004604559, 004681163, 005214890, 005434786, 005501250, 005587432, 005995401, 006807143, 006851455, 006852568, 006877244, 007534107, 007713308, 007775812, 008164927, 008534878, 008836582, 008959214, 009108118, 009527555
FSC: 5310 — Nuts and Washers
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
width1.000 INCHES NOMINAL IN
materialSTEEL COMP 4130 OVERALL
thickness0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN
hole_diameter0.514 INCHES MINIMUM AND 0.524 INCHES MAXIMUM IN
heat_treatmentAS FABRICATED
hardness_rating34.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
inside_diameter0.187 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
outside_diameter0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
overall_diameter1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN
special_featuresSPEC APPLIES EXCEPT DIMENSIONS AND FINISH
overall_thickness0.029 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
NSN5310-00-044-6188
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: FFW92A · 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
•
OVERALL DIAMETER: 0.625 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY SURFACE
•
NONDEFINITIVE SPEC/STD DATA: A TYPE
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 1010 OR STEEL COMP 1020 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.625 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY SURFACE
NONDEFINITIVE SPEC/STD DATAA TYPE
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 1010 OR STEEL COMP 1020 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.266 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 6
35P199Reference document
Same NSN cross-reference
Reference document — Secondary reference
100951X050WBReference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
16559R1Reference document
Same NSN cross-reference
Reference document — Secondary reference
5310000446188Reference document
Same NSN cross-reference
Reference document — Informative reference only
446188Reference document
Same NSN cross-reference
Reference document — Secondary reference
MILW1085TYPEAReference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FFW92A?
FFW92A is a WASHER,FLAT.
What parts can replace FFW92A?
There are 6 known substitutes for FFW92A: 35P199, 100951X050WB, 16559R1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FFW92A?
FFW92A is cataloged in the U.S. Government catalog under NSN 5310-00-044-6188. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.