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Technical Data Sheet
PartsTable / COMPONENT / 056625 ITEM 19 46402
056625 ITEM 19 46402 ✓ 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. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-167-4020, 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
056625 ITEM 19 46402
NSN: 5310-01-167-4020
FSC: 5310
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
Part Number056625 ITEM 19 46402
NSN5310-01-167-4020
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 056625 ITEM 19 46402 · 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 6
A-A-424 SZ2STAInterchangeable
interchangeable cross-reference
interchangeable
A-A-424Interchangeable
interchangeable cross-reference
interchangeable
46402Interchangeable
interchangeable cross-reference
interchangeable
5025-624Interchangeable
interchangeable cross-reference
interchangeable
8500348-2Interchangeable
interchangeable cross-reference
interchangeable
5351-044Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 056625 ITEM 19 46402?
056625 ITEM 19 46402 is a WASHER,FLAT.
What parts can replace 056625 ITEM 19 46402?
There are 6 known substitutes for 056625 ITEM 19 46402: A-A-424 SZ2STA, A-A-424, 46402 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 056625 ITEM 19 46402?
056625 ITEM 19 46402 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-167-4020. 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