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PartsTable / COMPONENT / W4904-16SS
W4904-16SS ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The W4904-16SS is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-095-9741, 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
W4904-16SS
NSN: 5315-01-095-9741
FSC: 5315
CAGE: 79218 — WATEROUS COMPANY (USA)
SPECIFICATIONS
Part NumberW4904-16SS
NSN5315-01-095-9741
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: W4904-16SS · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
2MA394-201PC71Interchangeable
interchangeable cross-reference
interchangeable
K1-5900-1002068ITEM96Interchangeable
interchangeable cross-reference
interchangeable
BP68SET2Interchangeable
interchangeable cross-reference
interchangeable
N178560Interchangeable
interchangeable cross-reference
interchangeable
B68Interchangeable
interchangeable cross-reference
interchangeable
B68XInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W4904-16SS?
W4904-16SS is a W4904-16SS.
What parts can replace W4904-16SS?
There are 15 known substitutes for W4904-16SS: 2MA394-201PC71, K1-5900-1002068ITEM96, BP68SET2 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W4904-16SS?
W4904-16SS is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-095-9741. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026