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2D3-621-57 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2D3-621-57: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nominal_thread_size: 0.500 INCHES IN, end_item_identification: NIMITZ CLASS CVN, thread_quantity_per_inch: 13.0. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-465-8402, 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
2D3-621-57
NSN: 5310-01-465-8402
FSC: 5310 — Nuts and Washers
CAGE: 34712 — LAKE SHORE SYSTEMS, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nominal_thread_size0.500 INCHES IN
end_item_identificationNIMITZ CLASS CVN
thread_quantity_per_inch13.0
NSN5310-01-465-8402
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2D3-621-57 · 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
KEY FEATURES
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
THREAD QUANTITY PER INCH: 13.0
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
NOMINAL THREAD SIZE0.500 INCHES IN
END ITEM IDENTIFICATIONNIMITZ CLASS CVN
THREAD QUANTITY PER INCH13.0
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
PL-2D3-621 PC 57Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2D3-621Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 2D3-621-57?
2D3-621-57 is a NUT,PLAIN,HEXAGON.
What parts can replace 2D3-621-57?
There are 2 known substitutes for 2D3-621-57: PL-2D3-621 PC 57, 2D3-621. Substitute compatibility should be verified for your specific system.
What is the NSN for 2D3-621-57?
2D3-621-57 is cataloged in the U.S. Government catalog under NSN 5310-01-465-8402. 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.