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U0410340 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

U0410340: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 1.000 INCHES NOMINAL IN, overall_diameter: 2.500 INCHES NOMINAL IN, surface_treatment: ZINC OVERALL, part_name_assigned_by_controlling_agency: FLAT WASHER LOW CARBON. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-625-9995, 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
U0410340
NSN: 5310-01-625-9995
FSC: 5310 — Nuts and Washers
CAGE: F9980 — JIGE INTERNATIONAL (FRA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter1.000 INCHES NOMINAL IN
overall_diameter2.500 INCHES NOMINAL IN
surface_treatmentZINC OVERALL
part_name_assigned_by_controlling_agencyFLAT WASHER LOW CARBON
NSN5310-01-625-9995
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: U0410340 · 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
•
OVERALL DIAMETER: 2.500 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER2.500 INCHES NOMINAL IN
SURFACE TREATMENTZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYFLAT WASHER LOW CARBON
MATERIALSTEEL OVERALL
HOLE DIAMETER1.000 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
0410340Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
Y00014925Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is U0410340?
U0410340 is a WASHER,FLAT.
What parts can replace U0410340?
There are 2 known substitutes for U0410340: 0410340, Y00014925. Substitute compatibility should be verified for your specific system.
What is the NSN for U0410340?
U0410340 is cataloged in the U.S. Government catalog under NSN 5310-01-625-9995. 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.