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SPP51-0055 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

SPP51-0055: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-01-408-2820, 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
SPP51-0055
NSN: 5310-01-408-2820
FSC: 5310 — Nuts and Washers
CAGE: 20019 — WARD LEONARD CT LLC (USA)
SPECIFICATIONS
Part NumberSPP51-0055
NSN5310-01-408-2820
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SPP51-0055 · 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
SUBSTITUTES & CROSS-REFERENCES 2
01-0190-40Reference document
Same NSN cross-reference
Reference document — Secondary reference
SPP51-55Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 SPP51-0055?
SPP51-0055 is a WASHER,LOCK.
What parts can replace SPP51-0055?
There are 2 known substitutes for SPP51-0055: 01-0190-40, SPP51-55. Substitute compatibility should be verified for your specific system.
What is the NSN for SPP51-0055?
SPP51-0055 is cataloged in the U.S. Government catalog under NSN 5310-01-408-2820. This indicates validated use in U.S. government and defense supply chains.
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