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LE153-0001-0003 — WASHER,CONCAVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

LE153-0001-0003: WASHER,CONCAVE.

The WASHER,CONCAVE is a the manufacturer industrial component. Key specifications include radius: 0.218 INCHES MINIMUM AND 0.238 INCHES MAXIMUM IN, material: STEEL COMP 8740 OVERALL, recess_depth: 0.025 INCHES NOMINAL IN, hole_diameter: 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN, outside_diameter: 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN, style_designator: CONCAVE. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-658-8831, 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
LE153-0001-0003
NSN: 5310-01-658-8831
FSC: 5310 — Nuts and Washers
CAGE: 15653 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)
SPECIFICATIONS
radius0.218 INCHES MINIMUM AND 0.238 INCHES MAXIMUM IN
materialSTEEL COMP 8740 OVERALL
recess_depth0.025 INCHES NOMINAL IN
hole_diameter0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
outside_diameter0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN
style_designatorCONCAVE
material_thickness0.058 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
end_item_identificationB-1-BACFT
part_name_assigned_by_controlling_agencyWASHER, SELF-ALIGNING (CONVEX)
NSN5310-01-658-8831
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: LE153-0001-0003 · 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
•
RADIUS: 0.218 INCHES MINIMUM AND 0.238 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CONCAVE
•
OUTSIDE DIAMETER: 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN
•
RECESS DEPTH: 0.025 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.058 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 8740 OVERALL
TECHNICAL CHARACTERISTICS
RADIUS0.218 INCHES MINIMUM AND 0.238 INCHES MAXIMUM IN
STYLE DESIGNATORCONCAVE
OUTSIDE DIAMETER0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN
RECESS DEPTH0.025 INCHES NOMINAL IN
MATERIAL THICKNESS0.058 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, SELF-ALIGNING (CONVEX)
END ITEM IDENTIFICATIONB-1-BACFT
MATERIALSTEEL COMP 8740 OVERALL
HOLE DIAMETER0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
LE153-0001Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
9487-0Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 LE153-0001-0003?
LE153-0001-0003 is a WASHER,CONCAVE.
What parts can replace LE153-0001-0003?
There are 2 known substitutes for LE153-0001-0003: LE153-0001, 9487-0. Substitute compatibility should be verified for your specific system.
What is the NSN for LE153-0001-0003?
LE153-0001-0003 is cataloged in the U.S. Government catalog under NSN 5310-01-658-8831. 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.