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DB1806 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

DB1806: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include nut_style: HEXAGON, overall_height: 0.210 INCHES NOMINAL IN, precious_material: SILVER, washer_outside_diameter: 0.400 INCHES NOMINAL IN, precious_material_and_location: THREADS SILVER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-075-0987, 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
DB1806
NSN: 5310-01-075-0987
FSC: 5310 — Nuts and Washers
CAGE: Z4660 — ROSEBANK ENGINEERING (AUS)
SPECIFICATIONS
nut_styleHEXAGON
overall_height0.210 INCHES NOMINAL IN
precious_materialSILVER
washer_outside_diameter0.400 INCHES NOMINAL IN
precious_material_and_locationTHREADS SILVER
NSN5310-01-075-0987
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: DB1806 · 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
•
WASHER OUTSIDE DIAMETER: 0.400 INCHES NOMINAL IN
•
PRECIOUS MATERIAL: SILVER
•
PRECIOUS MATERIAL AND LOCATION: THREADS SILVER
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.210 INCHES NOMINAL IN
WASHER OUTSIDE DIAMETER0.400 INCHES NOMINAL IN
PRECIOUS MATERIALSILVER
PRECIOUS MATERIAL AND LOCATIONTHREADS SILVER
NUT STYLEHEXAGON
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 2
10122085Reference document
Same NSN cross-reference
Reference document — Informative reference only
2606067Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is DB1806?
DB1806 is a NUT,SELF-LOCKING,EXTENDED WASHER.
What parts can replace DB1806?
There are 2 known substitutes for DB1806: 10122085, 2606067. Substitute compatibility should be verified for your specific system.
What is the NSN for DB1806?
DB1806 is cataloged in the U.S. Government catalog under NSN 5310-01-075-0987. 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.