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578323 — NUT,SELF-LOCKING,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

578323: NUT,SELF-LOCKING,PLATE.

The NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-00-891-3662, 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
578323
NSN: 5310-00-891-3662
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
Part Number578323
NSN5310-00-891-3662
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 578323 · 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 7
MA12600-02Reference document
Same NSN cross-reference
Reference document — Secondary reference
MK1000-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
D52LHTA51M02Reference document
Same NSN cross-reference
Reference document — Secondary reference
760417Reference document
Same NSN cross-reference
Reference document — Secondary reference
BACN10JP3ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VN202A1-02Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 578323?
578323 is a NUT,SELF-LOCKING,PLATE.
What parts can replace 578323?
There are 7 known substitutes for 578323: MA12600-02, MK1000-3, D52LHTA51M02 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 578323?
578323 is cataloged in the U.S. Government catalog under NSN 5310-00-891-3662. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.