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661590 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

661590: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY X-750 OVERALL, outside_diameter: 2.049 INCHES MINIMUM AND 2.052 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 1.898 INCHES MINIMUM IN, cross-sectional_thickness: 0.092 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN, cross-sectional_shape_style: SINGLE FOLDED METAL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-472-2787, 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
661590
NSN: 5330-00-472-2787
FSC: 5330 — Packing and Gasket Materials
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialNICKEL ALLOY X-750 OVERALL
outside_diameter2.049 INCHES MINIMUM AND 2.052 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter1.898 INCHES MINIMUM IN
cross-sectional_thickness0.092 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
cross-sectional_shape_styleSINGLE FOLDED METAL
material_document_and_classificationAMS 5542 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-472-2787
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 661590 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: 0.092 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5542 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SINGLE FOLDED METAL
•
OUTSIDE DIAMETER: 2.049 INCHES MINIMUM AND 2.052 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 1.898 INCHES MINIMUM IN
•
MATERIAL: NICKEL ALLOY X-750 OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.092 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5542 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESINGLE FOLDED METAL
OUTSIDE DIAMETER2.049 INCHES MINIMUM AND 2.052 INCHES MAXIMUM IN
APERTURE DIAMETER1.898 INCHES MINIMUM IN
MATERIALNICKEL ALLOY X-750 OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 661590?
661590 is a GASKET.
What is the NSN for 661590?
661590 is cataloged in the U.S. Government catalog under NSN 5330-00-472-2787. This indicates validated use in U.S. government and defense supply chains.
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