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90508-ZW1-B00 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

90508-ZW1-B00: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include overall_diameter: 18.5 MILLIMETERS NOMINAL MM, special_features: WASHER FOR ZW54-F0500A PROPELLER AND SHAFT, peripheral_shape_style: ROUND, end_item_identification: 8MHS. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-507-7950, 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
90508-ZW1-B00
NSN: 5310-01-507-7950
FSC: 5310 — Nuts and Washers
CAGE: 08YS9 — SLIDELL MARINE INC (USA)
SPECIFICATIONS
overall_diameter18.5 MILLIMETERS NOMINAL MM
special_featuresWASHER FOR ZW54-F0500A PROPELLER AND SHAFT
peripheral_shape_styleROUND
end_item_identification8MHS
NSN5310-01-507-7950
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 90508-ZW1-B00 · 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: 18.5 MILLIMETERS NOMINAL MM
•
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER18.5 MILLIMETERS NOMINAL MM
SPECIAL FEATURESWASHER FOR ZW54-F0500A PROPELLER AND SHAFT
PERIPHERAL SHAPE STYLEROUND
END ITEM IDENTIFICATION8MHS
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
WTP000289498ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90508-ZW1-B00?
90508-ZW1-B00 is a WASHER,FLAT.
What parts can replace 90508-ZW1-B00?
There is 1 known substitute for 90508-ZW1-B00: WTP000289498A. Substitute compatibility should be verified for your specific system.
What is the NSN for 90508-ZW1-B00?
90508-ZW1-B00 is cataloged in the U.S. Government catalog under NSN 5310-01-507-7950. 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.