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050518 ✓ 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 WASHER,FLAT is a the manufacturer industrial component. Key specifications include end_item_identification: EMERGENCY RESPONSE OPERATING TABLE SYSTEM MODEL SR901RT NSN 6530-01-521-7984, part_name_assigned_by_controlling_agency: ARM BOARD ASSEMBLY SR901RT EMERGENCY RESPONSE OPERATING TABLE SYSTEM NSN 6530-01-521-7984. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-708-0495, 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
050518
NSN: 5310-00-708-0495
FSC: 5310
CAGE: 80850 — INTERLINE BRANDS, INC. DBA J. A. SEXAUER (USA)
SPECIFICATIONS
special_featuresARM BOARD CONSTRUCTED OF FIBER-GLASS, ALUMINUM MOUNTING HARDWARE, USED WITH MODEL SR901RT EMERGENCY RESPONSE OPERATING TABLE SYSTEM NSN 6530-01-521-7984
end_item_identificationEMERGENCY RESPONSE OPERATING TABLE SYSTEM MODEL SR901RT NSN 6530-01-521-7984
part_name_assigned_by_controlling_agencyARM BOARD ASSEMBLY SR901RT EMERGENCY RESPONSE OPERATING TABLE SYSTEM NSN 6530-01-521-7984
NSN5310-00-708-0495
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 050518 · 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
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESMATL-FIBERGLASS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
5051Interchangeable
interchangeable cross-reference
interchangeable
5051-1Interchangeable
interchangeable cross-reference
interchangeable
215-26323-1Interchangeable
interchangeable cross-reference
interchangeable
660AInterchangeable
interchangeable cross-reference
interchangeable
660A4-125Interchangeable
interchangeable cross-reference
interchangeable
324636R91Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 050518?
050518 is a WASHER,FLAT.
What parts can replace 050518?
There are 17 known substitutes for 050518: 5051, 5051-1, 215-26323-1 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 050518?
050518 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-708-0495. 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