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93783A031 — WASHER,SEAL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

93783A031: WASHER,SEAL.

The WASHER,SEAL is a the manufacturer industrial component. Key specifications include material: STEEL BODY, hole_diameter: 0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN, overall_height: 0.050 INCHES NOMINAL0.050 INCHES NOMINAL IN, outside_diameter: 0.666 INCHES NOMINAL0.666 INCHES NOMINAL IN, surface_treatment: CADMIUM BODY. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-442-6932, 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
93783A031
NSN: 5310-01-442-6932
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL BODY
hole_diameter0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN
overall_height0.050 INCHES NOMINAL0.050 INCHES NOMINAL IN
outside_diameter0.666 INCHES NOMINAL0.666 INCHES NOMINAL IN
special_featuresWORKING TEMPERATURE RANGE IS -65.0 DEGRESS TO 225.0 DEGREES FAHRENHEITWORKING TEMPERATURE RANGE IS -65.0 DEGRESS TO 225.0 DEGREES FAHRENHEIT
surface_treatmentCADMIUM BODY
NSN5310-01-442-6932
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 93783A031 · 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: 0.666 INCHES NOMINAL0.666 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM BODY
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
•
HOLE DIAMETER: 0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.050 INCHES NOMINAL0.050 INCHES NOMINAL IN
OUTSIDE DIAMETER0.666 INCHES NOMINAL0.666 INCHES NOMINAL IN
SPECIAL FEATURESWORKING TEMPERATURE RANGE IS -65.0 DEGRESS TO 225.0 DEGREES FAHRENHEITWORKING TEMPERATURE RANGE IS -65.0 DEGRESS TO 225.0 DEGREES FAHRENHEIT
SURFACE TREATMENTCADMIUM BODY
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
MATERIALSTEEL BODY
HOLE DIAMETER0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 93783A031?
93783A031 is a WASHER,SEAL.
What is the NSN for 93783A031?
93783A031 is cataloged in the U.S. Government catalog under NSN 5310-01-442-6932. 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.