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18902 PC2 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

18902 PC2: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_width: 0.125 INCHES NOMINAL IN, overall_height: 0.150 INCHES NOMINAL IN, overall_length: 0.300 INCHES NOMINAL IN, special_features: MILITARY CRITICAL, EXPORT CONTROL; CARBON STEEL, style_designator: PLAIN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-556-1786, 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
18902 PC2
NSN: 5315-01-556-1786
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.125 INCHES NOMINAL IN
overall_height0.150 INCHES NOMINAL IN
overall_length0.300 INCHES NOMINAL IN
special_featuresMILITARY CRITICAL, EXPORT CONTROL; CARBON STEEL
style_designatorPLAIN
end_item_identificationMK11, 40MM SALUTING, MOUNT MM
criticality_code_justificationFEAT
part_name_assigned_by_controlling_agencyKEY
NSN5315-01-556-1786
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 18902 PC2 · 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
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
STYLE DESIGNATOR: PLAIN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.150 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONFEAT
STYLE DESIGNATORPLAIN
OVERALL LENGTH0.300 INCHES NOMINAL IN
OVERALL WIDTH0.125 INCHES NOMINAL IN
SPECIAL FEATURESMILITARY CRITICAL, EXPORT CONTROL; CARBON STEEL
PART NAME ASSIGNED BY CONTROLLING AGENCYKEY
END ITEM IDENTIFICATIONMK11, 40MM SALUTING, MOUNT MM
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 18902 PC2?
18902 PC2 is a KEY,MACHINE.
What is the NSN for 18902 PC2?
18902 PC2 is cataloged in the U.S. Government catalog under NSN 5315-01-556-1786. 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.