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76000218-001 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

76000218-001: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-12 OR STEEL COMP 630 OVERALL, thickness: 0.160 INCHES NOMINAL IN, overall_diameter: 0.493 INCHES NOMINAL IN, special_features: HEAT TREAT TO 170 KSI MINIMUM; FATIGUE LIFE 250 POUNDS TENSION TO 250 POUNDS COMPRESSION PER 1,000,000 CYCLES LBS, surface_treatment: PASSIVATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-516-4879, 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
76000218-001
NSN: 5310-01-516-4879
FSC: 5310 — Nuts and Washers
CAGE: 04939 — LOCKHEED MARTIN CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP XM-12 OR STEEL COMP 630 OVERALL
thickness0.160 INCHES NOMINAL IN
overall_diameter0.493 INCHES NOMINAL IN
special_featuresHEAT TREAT TO 170 KSI MINIMUM; FATIGUE LIFE 250 POUNDS TENSION TO 250 POUNDS COMPRESSION PER 1,000,000 CYCLES LBS
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
end_item_identification1230-01-411-0983 RADAR FIRE CONTROL SYSTEM
cross-sectional_shape_styleRECTANGULAR
NSN5310-01-516-4879
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 76000218-001 · 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: 0.493 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
COLOR: NATURAL OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP XM-12 OR STEEL COMP 630 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.493 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
COLORNATURAL OVERALL
SPECIAL FEATURESHEAT TREAT TO 170 KSI MINIMUM; FATIGUE LIFE 250 POUNDS TENSION TO 250 POUNDS COMPRESSION PER 1,000,000 CYCLES LBS
SURFACE TREATMENTPASSIVATE OVERALL
PERIPHERAL SHAPE STYLEROUND
END ITEM IDENTIFICATION1230-01-411-0983 RADAR FIRE CONTROL SYSTEM
MATERIALSTEEL COMP XM-12 OR STEEL COMP 630 OVERALL
THICKNESS0.160 INCHES NOMINAL 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

No substitute or cross-reference records for this part.

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 76000218-001?
76000218-001 is a WASHER,FLAT.
What is the NSN for 76000218-001?
76000218-001 is cataloged in the U.S. Government catalog under NSN 5310-01-516-4879. 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.