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90093-0040 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

90093-0040: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: COPPER OVERALL, thickness: 0.064 INCHES NOMINAL IN, hole_diameter: 0.279 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN, overall_diameter: 0.498 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-276-2816, 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
90093-0040
NSN: 5310-00-276-2816
NIINs: 002762816, 003730121
FSC: 5310 — Nuts and Washers
CAGE: 59885 — ROSEMOUNT AEROSPACE INC DBA ROSEMOUNT AEROSPACE INC (USA)
SPECIFICATIONS
materialCOPPER OVERALL
thickness0.064 INCHES NOMINAL IN
hole_diameter0.279 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
overall_diameter0.498 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-276-2816
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 90093-0040 · 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: 0.493 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: COPPER OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.274 INCHES MINIMUM AND 0.288 INCHES MAXIMUM IN
•
THICKNESS: 0.055 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.493 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALCOPPER OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.274 INCHES MINIMUM AND 0.288 INCHES MAXIMUM IN
THICKNESS0.055 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
61623Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 90093-0040?
90093-0040 is a WASHER,FLAT.
What parts can replace 90093-0040?
There is 1 known substitute for 90093-0040: 61623. Substitute compatibility should be verified for your specific system.
What is the NSN for 90093-0040?
90093-0040 is cataloged in the U.S. Government catalog under NSN 5310-00-276-2816. 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.