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ASME B18 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

ASME B18: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.252 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, outside_diameter: 0.487 INCHES MAXIMUM IN, style_designator: SPLIT HELICAL-RIGHT HAND, material_thickness: 0.062 INCHES NOMINAL IN, end_item_identification: 2350-01-565-3460. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-672-4400, 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
ASME B18
NSN: 5310-01-672-4400
FSC: 5310 — Nuts and Washers
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.252 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
outside_diameter0.487 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness0.062 INCHES NOMINAL IN
end_item_identification2350-01-565-3460
part_name_assigned_by_controlling_agencyWASHER, LOCK, REGULAR HELICAL SPRING
NSN5310-01-672-4400
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ASME B18 · 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
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
OUTSIDE DIAMETER: 0.487 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.252 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
OUTSIDE DIAMETER0.487 INCHES MAXIMUM IN
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, LOCK, REGULAR HELICAL SPRING
END ITEM IDENTIFICATION2350-01-565-3460
MATERIALSTEEL OVERALL
HOLE DIAMETER0.252 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
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
AEW07X250000SH8A11Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
ASME B18.24-2004Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 ASME B18?
ASME B18 is a WASHER,LOCK.
What parts can replace ASME B18?
There are 2 known substitutes for ASME B18: AEW07X250000SH8A11, ASME B18.24-2004. Substitute compatibility should be verified for your specific system.
What is the NSN for ASME B18?
ASME B18 is cataloged in the U.S. Government catalog under NSN 5310-01-672-4400. 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.