PartsTable
Technical Data Sheet
Download PDF

U15018 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

U15018: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, thickness: 0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN, hole_diameter: 0.177 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN, hardness_rating: 45.0 SHORE DUROMETER A NOMINAL, overall_diameter: 0.245 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-291-0481, 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
U15018
NSN: 5310-00-291-0481
FSC: 5310 — Nuts and Washers
CAGE: 19139 — EASTMAN KODAK CO (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
thickness0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
hole_diameter0.177 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
hardness_rating45.0 SHORE DUROMETER A NOMINAL
overall_diameter0.245 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-291-0481
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: U15018 · 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: 0.245 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
HARDNESS RATING: 45.0 SHORE DUROMETER A NOMINAL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.177 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
•
THICKNESS: 0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.245 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
HARDNESS RATING45.0 SHORE DUROMETER A NOMINAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALRUBBER SYNTHETIC OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.177 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
THICKNESS0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM 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 1
5581140Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy U15018?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is U15018?
U15018 is a WASHER,FLAT.
What parts can replace U15018?
There is 1 known substitute for U15018: 5581140. Substitute compatibility should be verified for your specific system.
What is the NSN for U15018?
U15018 is cataloged in the U.S. Government catalog under NSN 5310-00-291-0481. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — U15018

✓ 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.