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63-10542 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

63-10542: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 630 OR COPPER ALLOY 170 OVERALL, flat_height: 0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN, overall_width: 0.060 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN, overall_height: 0.420 INCHES NOMINAL IN, overall_length: 1.720 INCHES NOMINAL IN, style_designator: STEPPED. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-173-8904, 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
63-10542
NSN: 5315-00-173-8904
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 82918 — THE BOEING COMPANY DIV LEGACY WICHITA (USA)
SPECIFICATIONS
materialCOPPER ALLOY 630 OR COPPER ALLOY 170 OVERALL
flat_height0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
overall_width0.060 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
overall_height0.420 INCHES NOMINAL IN
overall_length1.720 INCHES NOMINAL IN
style_designatorSTEPPED
first_flat_length0.720 INCHES NOMINAL IN
starting_edge_shapeSTRAIGHT
NSN5315-00-173-8904
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 63-10542 · 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
•
FIRST FLAT LENGTH: 0.720 INCHES NOMINAL IN
•
STARTING EDGE SHAPE: STRAIGHT
•
STYLE DESIGNATOR: STEPPED
•
MATERIAL: COPPER ALLOY 630 OR COPPER ALLOY 170 OVERALL
•
FLAT HEIGHT: 0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.420 INCHES NOMINAL IN
FIRST FLAT LENGTH0.720 INCHES NOMINAL IN
STARTING EDGE SHAPESTRAIGHT
STYLE DESIGNATORSTEPPED
OVERALL LENGTH1.720 INCHES NOMINAL IN
OVERALL WIDTH0.060 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY 630 OR COPPER ALLOY 170 OVERALL
FLAT HEIGHT0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 63-10542?
63-10542 is a KEY,MACHINE.
What is the NSN for 63-10542?
63-10542 is cataloged in the U.S. Government catalog under NSN 5315-00-173-8904. 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.