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ST4M199C6B — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

ST4M199C6B: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 304 OVERALL, hole_diameter: 0.375 INCHES NOMINAL IN, outside_diameter: 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN, style_designator: KEY, surface_treatment: PASSIVATE OVERALL, material_thickness: 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-497-7024, 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
ST4M199C6B
NSN: 5310-01-497-7024
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 304 OVERALL
hole_diameter0.375 INCHES NOMINAL IN
outside_diameter0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
style_designatorKEY
surface_treatmentPASSIVATE OVERALL
material_thickness0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
end_item_identificationAIRCRAFT, EAGLE F-15, FWD FUSELAGE
material_document_and_classificationQQ-S-763,COMP 302 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-763,COMP 304 FED SPEC 2ND MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-497-7024
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ST4M199C6B · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,COMP 302 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-763,COMP 304 FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 302 OR STEEL COMP 304 OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COMP 302 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-763,COMP 304 FED SPEC 2ND MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
MATERIAL THICKNESS0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
END ITEM IDENTIFICATIONAIRCRAFT, EAGLE F-15, FWD FUSELAGE
MATERIALSTEEL COMP 302 OR STEEL COMP 304 OVERALL
HOLE DIAMETER0.375 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 ST4M199C6B?
ST4M199C6B is a WASHER,KEY.
What is the NSN for ST4M199C6B?
ST4M199C6B is cataloged in the U.S. Government catalog under NSN 5310-01-497-7024. This indicates validated use in U.S. government and defense supply chains.
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