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863T0180726 — WASHER,FLAT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

863T0180726: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include thickness: 0.250 INCHES NOMINAL IN, hole_diameter: 3.760 INCHES NOMINAL IN, chamfer_length: 0.010 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_length: 15.900 INCHES NOMINAL IN, overall_diameter: 5.000 INCHES NOMINAL IN, drilled_hole_location: BOTH ENDS. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-258-8425, 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
863T0180726
NSN: 5340-01-258-8425
NIINs: 012588425, 012597781
FSC: 5340 — Hardware, Commercial
CAGE: 04236 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
thickness0.250 INCHES NOMINAL IN
hole_diameter3.760 INCHES NOMINAL IN
chamfer_length0.010 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_length15.900 INCHES NOMINAL IN
overall_diameter5.000 INCHES NOMINAL IN
drilled_hole_locationBOTH ENDS
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
distance_from_end_to_hole_center0.750 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
NSN5340-01-258-8425
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 863T0180726 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
•
CHAMFER LENGTH: 0.010 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
OVERALL DIAMETER: 3.742 INCHES MINIMUM AND 3.746 INCHES MAXIMUM IN
•
DRILLED HOLE LOCATION: BOTH ENDS
•
HOLE DIAMETER: 0.500 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
•
DISTANCE FROM END TO HOLE CENTER: 0.750 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS
CHAMFER LENGTH0.010 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OVERALL DIAMETER3.742 INCHES MINIMUM AND 3.746 INCHES MAXIMUM IN
DRILLED HOLE LOCATIONBOTH ENDS
OVERALL LENGTH15.900 INCHES NOMINAL IN
HOLE DIAMETER0.500 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
DISTANCE FROM END TO HOLE CENTER0.750 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
SUBSTITUTES & CROSS-REFERENCES 1
863T0180726-001Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 863T0180726?
863T0180726 is a WASHER,FLAT.
What parts can replace 863T0180726?
There is 1 known substitute for 863T0180726: 863T0180726-001. Substitute compatibility should be verified for your specific system.
What is the NSN for 863T0180726?
863T0180726 is cataloged in the U.S. Government catalog under NSN 5340-01-258-8425. This indicates validated use in U.S. government and defense supply chains.
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