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99-D-143-10 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

99-D-143-10: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE AND RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM OVERALL, outside_diameter: 2.251 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 1.735 INCHES NOMINAL IN, end_item_identification: VALVE CHECK, cross-sectional_thickness: 0.258 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-497-1241, 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
99-D-143-10
NSN: 5330-01-497-1241
FSC: 5330 — Packing and Gasket Materials
CAGE: 71905 — DERBYSHIRE MACHINE & TOOL CO (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE AND RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM OVERALL
outside_diameter2.251 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter1.735 INCHES NOMINAL IN
end_item_identificationVALVE CHECK
cross-sectional_thickness0.258 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
part_name_assigned_by_controlling_agencySEAL,HINGE PIN
NSN5330-01-497-1241
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 99-D-143-10 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 THICKNESS: 0.258 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 2.251 INCHES NOMINAL IN
•
APERTURE DIAMETER: 1.735 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE AND RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.258 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER2.251 INCHES NOMINAL IN
APERTURE DIAMETER1.735 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYSEAL,HINGE PIN
END ITEM IDENTIFICATIONVALVE CHECK
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE AND RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
34169Reference document
Same NSN cross-reference
Reference document — Secondary 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 99-D-143-10?
99-D-143-10 is a GASKET.
What parts can replace 99-D-143-10?
There is 1 known substitute for 99-D-143-10: 34169. Substitute compatibility should be verified for your specific system.
What is the NSN for 99-D-143-10?
99-D-143-10 is cataloged in the U.S. Government catalog under NSN 5330-01-497-1241. This indicates validated use in U.S. government and defense supply chains.
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