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63A68C519 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

63A68C519: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 5052 OR ALUMINUM ALLOY 6061 OVERALL, overall_width: 0.410 INCHES NOMINAL IN, overall_height: 0.063 INCHES NOMINAL IN, overall_length: 0.650 INCHES NOMINAL IN, surface_treatment: CHROMATE OVERALL, starting_edge_shape: STRAIGHT. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-085-4013, 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
63A68C519
NSN: 5315-01-085-4013
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 5052 OR ALUMINUM ALLOY 6061 OVERALL
overall_width0.410 INCHES NOMINAL IN
overall_height0.063 INCHES NOMINAL IN
overall_length0.650 INCHES NOMINAL IN
surface_treatmentCHROMATE OVERALL
starting_edge_shapeSTRAIGHT
material_document_and_classificationQQ-A-250/8,TEMPER H32 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/11,TEMPER T6 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-250/11,TEMPER T651 FED SPEC 2ND MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-C-5541,CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-01-085-4013
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 63A68C519 · 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: MIL-C-5541,CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STARTING EDGE SHAPE: STRAIGHT
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/8,TEMPER H32 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/11,TEMPER T6 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-250/11,TEMPER T651 FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: CHROMATE OVERALL
•
MATERIAL: ALUMINUM ALLOY 5052 OR ALUMINUM ALLOY 6061 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.063 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541,CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
STARTING EDGE SHAPESTRAIGHT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/8,TEMPER H32 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/11,TEMPER T6 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-250/11,TEMPER T651 FED SPEC 2ND MATERIAL RESPONSE OVERALL
OVERALL LENGTH0.650 INCHES NOMINAL IN
OVERALL WIDTH0.410 INCHES NOMINAL IN
SURFACE TREATMENTCHROMATE OVERALL
MATERIALALUMINUM ALLOY 5052 OR ALUMINUM ALLOY 6061 OVERALL
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 63A68C519?
63A68C519 is a KEY,MACHINE.
What is the NSN for 63A68C519?
63A68C519 is cataloged in the U.S. Government catalog under NSN 5315-01-085-4013. 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.