PartsTable / COMPONENT / 18786A
18786A
✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: ASBESTOS AND COPPER OVERALL, hole_diameter: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.000 INCHES NOMINAL IN, overall_length: 4.125 INCHES NOMINAL IN, style_designator: NON-CIRCULAR, aperture_diameter: 3.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-145-1335, 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
18786A
NSN: 5330-00-145-1335 FSC: 5330 CAGE: 28265 — HERCULES ENGINE CO INC (USA)
SPECIFICATIONS
material ASBESTOS AND COPPER OVERALL hole_diameter 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN overall_width 4.000 INCHES NOMINAL IN overall_length 4.125 INCHES NOMINAL IN style_designator NON-CIRCULAR aperture_diameter 3.125 INCHES NOMINAL IN bolt_hole_quantity 4 outside_corner_radius 0.500 INCHES NOMINAL IN cross-sectional_thickness 0.094 INCHES NOMINAL IN cross-sectional_shape_style METAL AND METALLIC MATERIALS outside_edge_to_bolt_hole_center_distance_along_width 0.500 INCHES NOMINAL IN outside_edge_to_bolt_hole_center_distance_along_length 0.500 INCHES NOMINAL IN NSN 5330-00-145-1335
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION
ID: —
CROSS-SECTION
CS: —
SPECIFICATION
Material: —
Durometer: —
Temp: —
PN: 18786A
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
• CROSS-SECTIONAL SHAPE STYLE: METAL AND METALLIC MATERIALS
• CROSS-SECTIONAL THICKNESS: 0.094 INCHES NOMINAL IN
• APERTURE DIAMETER: 3.125 INCHES NOMINAL IN
• OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH: 0.500 INCHES NOMINAL IN
• OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH: 0.500 INCHES NOMINAL IN
• OUTSIDE CORNER RADIUS: 0.500 INCHES NOMINAL IN
• CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 3.125 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLE METAL AND METALLIC MATERIALS CROSS-SECTIONAL THICKNESS 0.094 INCHES NOMINAL IN OVERALL LENGTH 4.125 INCHES NOMINAL IN APERTURE DIAMETER 3.125 INCHES NOMINAL IN OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH 0.500 INCHES NOMINAL IN OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH 0.500 INCHES NOMINAL IN OUTSIDE CORNER RADIUS 0.500 INCHES NOMINAL IN CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH 3.125 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN BOLT HOLE QUANTITY 4 MATERIAL ASBESTOS AND COPPER OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
262893 Interchangeable interchangeable cross-reference
interchangeable
625580 Interchangeable interchangeable cross-reference
interchangeable
9880 Interchangeable interchangeable cross-reference
interchangeable
0BTAIN Interchangeable interchangeable cross-reference
interchangeable
D19 Interchangeable interchangeable cross-reference
interchangeable
4761 Interchangeable interchangeable cross-reference
interchangeable
LIFECYCLE
Status CANCELLED
Availability —
RoHS Compliant EAR99 Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 18786A?
18786A is a GASKET.
What parts can replace 18786A?
There are 14 known substitutes for 18786A: 262893, 625580, 9880 and 11 more. Substitute compatibility should be verified for your specific system.
Is 18786A still available?
18786A is currently cancelled.