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6858181 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6858181: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_width: 0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, overall_height: 0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, overall_length: 0.270 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN, hardness_rating: 30.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL, special_features: MATERIAL: STEEL COMP 9310 OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-182-4554, 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
6858181
NSN: 5315-00-182-4554
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 63005 — ROLLS-ROYCE CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
overall_height0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
overall_length0.270 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
hardness_rating30.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
special_featuresMATERIAL: STEEL COMP 9310 OVERALL
style_designatorOCTAGON SHAPE
key_chamfer_angle45.0 DEGREES NOMINAL
surface_treatmentOXIDE OVERALL
key_chamfer_length0.080 INCHES NOMINAL IN
starting_edge_shapeCHAMFERED
NSN5315-00-182-4554
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6858181 · 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
•
KEY CHAMFER ANGLE: 45.0 DEGREES NOMINAL
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
•
STARTING EDGE SHAPE: CHAMFERED
•
STYLE DESIGNATOR: OCTAGON SHAPE
•
KEY CHAMFER LENGTH: 0.080 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
KEY CHAMFER ANGLE45.0 DEGREES NOMINAL
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
STARTING EDGE SHAPECHAMFERED
STYLE DESIGNATOROCTAGON SHAPE
OVERALL LENGTH0.270 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
OVERALL WIDTH0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
KEY CHAMFER LENGTH0.080 INCHES NOMINAL IN
SPECIAL FEATURESMATERIAL: STEEL COMP 9310 OVERALL
SURFACE TREATMENTOXIDE 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6858181?
6858181 is a KEY,MACHINE.
What is the NSN for 6858181?
6858181 is cataloged in the U.S. Government catalog under NSN 5315-00-182-4554. 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.