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1222253PC201 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1222253PC201: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_width: 1.875 INCHES NOMINAL IN, overall_height: 0.750 INCHES NOMINAL IN, overall_length: 2.750 INCHES NOMINAL IN, style_designator: PLAIN, counterbore_depth: 0.375 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-193-0804, 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
1222253PC201
NSN: 5315-00-193-0804
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width1.875 INCHES NOMINAL IN
overall_height0.750 INCHES NOMINAL IN
overall_length2.750 INCHES NOMINAL IN
style_designatorPLAIN
counterbore_depth0.375 INCHES NOMINAL IN
mounting_hole_depth0.750 INCHES NOMINAL IN
starting_edge_shapeSTRAIGHT
counterbore_diameter1.000 INCHES NOMINAL IN
mounting_hole_diameter0.688 INCHES NOMINAL IN
mounting_hole_type_and_quantity1 UNTHREADED-COUNTERBORED
material_document_and_classificationMIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-193-0804
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1222253PC201 · 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
•
MOUNTING HOLE TYPE AND QUANTITY: 1 UNTHREADED-COUNTERBORED
•
STARTING EDGE SHAPE: STRAIGHT
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MOUNTING HOLE DIAMETER: 0.688 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.750 INCHES NOMINAL IN
MOUNTING HOLE TYPE AND QUANTITY1 UNTHREADED-COUNTERBORED
STARTING EDGE SHAPESTRAIGHT
STYLE DESIGNATORPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE DIAMETER0.688 INCHES NOMINAL IN
OVERALL LENGTH2.750 INCHES NOMINAL IN
OVERALL WIDTH1.875 INCHES NOMINAL IN
DISTANCE FROM MOUNTING HOLE CENTER TO END1.375 INCHES NOMINAL IN
COUNTERBORE DEPTH0.375 INCHES NOMINAL 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
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1222253PC201?
1222253PC201 is a KEY,MACHINE.
What is the NSN for 1222253PC201?
1222253PC201 is cataloged in the U.S. Government catalog under NSN 5315-00-193-0804. 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.