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Technical Data Sheet
PartsTable / COMPONENT / 19-000-787 ITEM 20
19-000-787 ITEM 20 ✓ 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,LOCK 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 5310-01-297-3036, 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
19-000-787 ITEM 20
NSN: 5310-01-297-3036
FSC: 5310
CAGE: 13646 — WILO USA LLC (USA)
SPECIFICATIONS
Part Number19-000-787 ITEM 20
NSN5310-01-297-3036
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 19-000-787 ITEM 20 · 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 3
5910010448564Interchangeable
interchangeable cross-reference
interchangeable
125301Interchangeable
interchangeable cross-reference
interchangeable
235-7053P140Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 19-000-787 ITEM 20?
19-000-787 ITEM 20 is a WASHER,LOCK.
What parts can replace 19-000-787 ITEM 20?
There are 3 known substitutes for 19-000-787 ITEM 20: 5910010448564, 125301, 235-7053P140. Substitute compatibility should be verified for your specific system.
What is the NSN for 19-000-787 ITEM 20?
19-000-787 ITEM 20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-297-3036. 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