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206718-1 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

206718-1: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, hole_diameter: 0.190 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN, outside_diameter: 0.295 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN, style_designator: KEY, surface_treatment: PASSIVATE OVERALL, material_thickness: 0.008 INCHES MINIMUM AND 0.012 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-077-7144, 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
206718-1
NSN: 5310-01-077-7144
FSC: 5310 — Nuts and Washers
CAGE: 1W820 — PATRIOT AMERICAN SOLUTIONS LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
hole_diameter0.190 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
outside_diameter0.295 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
style_designatorKEY
surface_treatmentPASSIVATE OVERALL
material_thickness0.008 INCHES MINIMUM AND 0.012 INCHES MAXIMUM IN
internal_key_quantity1
internal_straight_key_width0.026 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
surface_treatment_document_and_classificationMIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
distance_from_centerline_to_top_of_internal_key0.082 INCHES MINIMUM AND 0.084 INCHES MAXIMUM IN
NSN5310-01-077-7144
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 206718-1 · 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
•
INTERNAL STRAIGHT KEY WIDTH: 0.026 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
•
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY: 0.082 INCHES MINIMUM AND 0.084 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: KEY
•
OUTSIDE DIAMETER: 0.295 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.008 INCHES MINIMUM AND 0.012 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS
INTERNAL STRAIGHT KEY WIDTH0.026 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY0.082 INCHES MINIMUM AND 0.084 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORKEY
OUTSIDE DIAMETER0.295 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
MATERIAL THICKNESS0.008 INCHES MINIMUM AND 0.012 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
MATERIALSTEEL COMP 303 OVERALL
INTERNAL KEY QUANTITY1
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

No substitute or cross-reference records for this part.

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 206718-1?
206718-1 is a WASHER,KEY.
What is the NSN for 206718-1?
206718-1 is cataloged in the U.S. Government catalog under NSN 5310-01-077-7144. 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.