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7740-26-9 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7740-26-9: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: LEATHER SEALING ELEMENT, case_style: SQUARE, seal_width: 0.625 INCHES NOMINAL IN, temp_rating: -100.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF, outside_diameter: 6.381 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-202-1885, 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
7740-26-9
NSN: 5330-00-202-1885
FSC: 5330 — Packing and Gasket Materials
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialLEATHER SEALING ELEMENT
case_styleSQUARE
seal_width0.625 INCHES NOMINAL IN
temp_rating-100.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
outside_diameter6.381 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter6.375 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter5.062 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-202-1885
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7740-26-9 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
•
TEMP RATING: -100.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
•
SEAL WIDTH: 0.625 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
OUTSIDE DIAMETER: 6.381 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 6.375 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 5.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
TEMP RATING-100.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
SEAL WIDTH0.625 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
OUTSIDE DIAMETER6.381 INCHES NOMINAL IN
HOUSING BORE DIAMETER6.375 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER5.062 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
MATERIALSTEEL CASE
SUBSTITUTES & CROSS-REFERENCES 2
50650Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
63852Reference 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 7740-26-9?
7740-26-9 is a SEAL,PLAIN ENCASED.
What parts can replace 7740-26-9?
There are 2 known substitutes for 7740-26-9: 50650, 63852. Substitute compatibility should be verified for your specific system.
What is the NSN for 7740-26-9?
7740-26-9 is cataloged in the U.S. Government catalog under NSN 5330-00-202-1885. This indicates validated use in U.S. government and defense supply chains.
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