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Technical Data Sheet
PartsTable / COMPONENT / D12750
D12750 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The CUP,COMPRESSION is a the manufacturer industrial component. Key specifications include material: LEATHER OVERALL, overall_length: 0.750 INCHES NOMINAL IN, feather_edge_angle: 45.0 DEGREES NOMINAL, center_hole_diameter: 3.750 INCHES NOMINAL IN, fsc_application_data: SCARIFIER CYLINDER GROUP,ROAD GRADER, recess_inside_diameter: 5.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-264-0227, 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
D12750
NSN: 5340-00-264-0227
FSC: 5340
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialLEATHER OVERALL
overall_length0.750 INCHES NOMINAL IN
feather_edge_angle45.0 DEGREES NOMINAL
center_hole_diameter3.750 INCHES NOMINAL IN
fsc_application_dataSCARIFIER CYLINDER GROUP,ROAD GRADER
recess_inside_diameter5.125 INCHES NOMINAL IN
base_material_thickness0.188 INCHES NOMINAL IN
NSN5340-00-264-0227
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: D12750 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FEATHER EDGE ANGLE: 45.0 DEGREES NOMINAL
•
RECESS INSIDE DIAMETER: 5.125 INCHES NOMINAL IN
•
MATERIAL: LEATHER OVERALL
•
CENTER HOLE DIAMETER: 3.750 INCHES NOMINAL IN
•
FSC APPLICATION DATA: SCARIFIER CYLINDER GROUP,ROAD GRADER
•
BASE MATERIAL THICKNESS: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FEATHER EDGE ANGLE45.0 DEGREES NOMINAL
RECESS INSIDE DIAMETER5.125 INCHES NOMINAL IN
MATERIALLEATHER OVERALL
CENTER HOLE DIAMETER3.750 INCHES NOMINAL IN
FSC APPLICATION DATASCARIFIER CYLINDER GROUP,ROAD GRADER
OVERALL LENGTH0.750 INCHES NOMINAL IN
BASE MATERIAL THICKNESS0.188 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
3050Upgraded Successor
successor cross-reference
successor
MA 120002Upgraded Successor
successor cross-reference
successor
3200Upgraded Successor
successor cross-reference
successor
12750Upgraded Successor
successor cross-reference
successor
45Interchangeable
interchangeable cross-reference
interchangeable
PISTOL GRIP MODEL 2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D12750?
D12750 is a CUP,COMPRESSION.
What parts can replace D12750?
There are 19 known substitutes for D12750: 3050, MA 120002, 3200 and 16 more. Substitute compatibility should be verified for your specific system.
Is D12750 still available?
D12750 is currently cancelled.
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Last verified: July 2026