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KC2003 — WASHER,CUP

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

KC2003: WASHER,CUP.

The WASHER,CUP is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: STEEL,CORROSION RESISTING,AMS 5646,0.947 MIN IN.0960 MAX IN. OD,0.625 MIN IN.

0635 MAX IN ID. This part is cataloged in the U.S. Government catalog under NSN 5310-00-602-7527, 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
KC2003
NSN: 5310-00-602-7527
FSC: 5310 — Nuts and Washers
CAGE: K0680 — ROLLS-ROYCE AIRLINES (GBR)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL,CORROSION RESISTING,AMS 5646,0.947 MIN IN.0960 MAX IN. OD,0.625 MIN IN. 0635 MAX IN ID
NSN5310-00-602-7527
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: KC2003 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,CORROSION RESISTING,AMS 5646,0.947 MIN IN.0960 MAX IN. OD,0.625 MIN IN. 0635 MAX IN ID
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,CORROSION RESISTING,AMS 5646,0.947 MIN IN.0960 MAX IN. OD,0.625 MIN IN. 0635 MAX IN ID
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
6864739Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 KC2003?
KC2003 is a WASHER,CUP.
What parts can replace KC2003?
There is 1 known substitute for KC2003: 6864739. Substitute compatibility should be verified for your specific system.
What is the NSN for KC2003?
KC2003 is cataloged in the U.S. Government catalog under NSN 5310-00-602-7527. 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.