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3421185 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3421185: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-01-500-0149, 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
3421185
NSN: 5310-01-500-0149
FSC: 5310 — Nuts and Washers
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
Part Number3421185
NSN5310-01-500-0149
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3421185 · 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
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 12
400-AEEGCompatiblePARTNER
Dell 300Gb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
compatible
342-2012CompatiblePARTNER
Dell 300Gb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
compatible
342-2017CompatiblePARTNER
Dell 300Gb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
compatible
342-3981CompatiblePARTNER
Dell 300Gb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
compatible
400-ACXFCompatiblePARTNER
Dell 300Gb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - SPN
compatible
400-AEEFCompatiblePARTNER
Dell 300Gb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - SPN - Gen 13
compatible
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
THIS PART SUBSTITUTES FOR 7
XVD27SUBSTITUTE
Dell 300Gb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - SPN
DELL
342-2012SUBSTITUTE
Dell 300Gb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - SPN
DELL
342-2017SUBSTITUTE
Dell 300Gb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - SPN
DELL
342-3981SUBSTITUTE
Dell 300Gb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - SPN
DELL
400-ACXFSUBSTITUTE
Dell 300Gb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - SPN
DELL
400-AEEFSUBSTITUTE
Dell 300Gb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - SPN
DELL
400-AEEGSUBSTITUTE
Dell 300Gb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - SPN
DELL
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FREQUENTLY ASKED QUESTIONS
What is 3421185?
3421185 is a WASHER,FLAT.
What parts can replace 3421185?
There are 12 known substitutes for 3421185: 400-AEEG, 342-2012, 342-2017 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3421185?
3421185 is cataloged in the U.S. Government catalog under NSN 5310-01-500-0149. 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.