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98491A165 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

98491A165: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_width: 0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN, overall_height: 0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN, overall_length: 11.875 INCHES MINIMUM AND 12.125 INCHES MAXIMUM IN, style_designator: PLAIN, surface_treatment: ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-641-2840, 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
98491A165
NSN: 5315-01-641-2840
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
overall_height0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
overall_length11.875 INCHES MINIMUM AND 12.125 INCHES MAXIMUM IN
style_designatorPLAIN
surface_treatmentZINC OVERALL
end_item_identification4220016179405
part_name_assigned_by_controlling_agencyKEY,SHAFT
NSN5315-01-641-2840
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 98491A165 · 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
•
STYLE DESIGNATOR: PLAIN
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
STYLE DESIGNATORPLAIN
OVERALL LENGTH11.875 INCHES MINIMUM AND 12.125 INCHES MAXIMUM IN
OVERALL WIDTH0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
SURFACE TREATMENTZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYKEY,SHAFT
END ITEM IDENTIFICATION4220016179405
MATERIALSTEEL 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 98491A165?
98491A165 is a KEY,MACHINE.
What is the NSN for 98491A165?
98491A165 is cataloged in the U.S. Government catalog under NSN 5315-01-641-2840. 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.