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218-02-013-2 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

218-02-013-2: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416 OVERALL, thickness: 0.047 INCHES NOMINAL IN, hole_diameter: 0.157 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN, heat_treatment: AS FABRICATED, surface_finish: 63.0 MICROINCHES ALL SURFACES, overall_diameter: 0.218 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-637-3860, 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
218-02-013-2
NSN: 5310-00-637-3860
NIINs: 006373860, 008809142
FSC: 5310 — Nuts and Washers
CAGE: 11871 — RECON/OPTICAL, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 416 OVERALL
thickness0.047 INCHES NOMINAL IN
hole_diameter0.157 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
heat_treatmentAS FABRICATED
surface_finish63.0 MICROINCHES ALL SURFACES
overall_diameter0.218 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-637-3860
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 218-02-013-2 · 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
SUBSTITUTES & CROSS-REFERENCES 1
102997Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 218-02-013-2?
218-02-013-2 is a WASHER,FLAT.
What parts can replace 218-02-013-2?
There is 1 known substitute for 218-02-013-2: 102997. Substitute compatibility should be verified for your specific system.
What is the NSN for 218-02-013-2?
218-02-013-2 is cataloged in the U.S. Government catalog under NSN 5310-00-637-3860. 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.