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406523 — NUT,PLAIN,ASSEMBLED WASHER

✓ Government record, cited
Ricoh · NUT WASHER
PRODUCT OVERVIEW

406523: NUT,PLAIN,ASSEMBLED WASHER.

Ricoh has a strong reputation for the quality of its laser copiers offering an excellent quality-price ratio and a very good reliability. And success this supports the complementarity of its products which offers everyday comfort. Ricoh offers a wide range of products specially designed to enhance your image and increase your productivity.

This part is cataloged in the U.S. Government catalog under NSN 5310-01-654-7977, 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
406523
NSN: 5310-01-654-7977
FSC: 5310 — Nuts and Washers
CAGE: 05606 — GENERAL DYNAMICS-OTS, INC. DIV ORDNANCE AND TACTICAL SYSTEMS (USA)
SPECIFICATIONS
special_featuresNUT, BRAKE LOCKING
end_item_identificationMK107
part_name_assigned_by_controlling_agencyNUT, PLAIN ASSEMBLY WASHER
NSN5310-01-654-7977
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 406523 · Ricoh ⚠ 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESNUT, BRAKE LOCKING
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT, PLAIN ASSEMBLY WASHER
END ITEM IDENTIFICATIONMK107
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
Z2C27Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 406523?
406523 is a NUT,PLAIN,ASSEMBLED WASHER manufactured by Ricoh.
What parts can replace 406523?
There is 1 known substitute for 406523: Z2C27. Substitute compatibility should be verified for your specific system.
What is the NSN for 406523?
406523 is cataloged in the U.S. Government catalog under NSN 5310-01-654-7977. 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.