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Technical Data Sheet
PartsTable / COMPONENT / 273580R1
273580R1 ✓ 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 SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, seal_width: 0.391 INCHES NOMINAL IN, housing_bore_diameter: 1.499 INCHES NOMINAL IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 0.875 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-178-4620, 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
273580R1
NSN: 5330-00-178-4620
FSC: 5330
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.391 INCHES NOMINAL IN
housing_bore_diameter1.499 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter0.875 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-178-4620
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 273580R1 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
•
SEAL WIDTH: 0.391 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
MATERIAL: LEATHER SEALING ELEMENT
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 1.499 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 0.875 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
TECHNICAL CHARACTERISTICS (FLIS)
SEAL WIDTH0.391 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
MATERIALLEATHER SEALING ELEMENT
MATERIALSTEEL CASE
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER1.499 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER0.875 INCHES NOMINAL IN
CASE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 35
12910Interchangeable
interchangeable cross-reference
interchangeable
8A91001Interchangeable
interchangeable cross-reference
interchangeable
30023Interchangeable
interchangeable cross-reference
interchangeable
72-6970-341Interchangeable
interchangeable cross-reference
interchangeable
20504-29Interchangeable
interchangeable cross-reference
interchangeable
895DUInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 273580R1?
273580R1 is a SEAL,PLAIN ENCASED.
What parts can replace 273580R1?
There are 35 known substitutes for 273580R1: 12910, 8A91001, 30023 and 32 more. Substitute compatibility should be verified for your specific system.
Is 273580R1 still available?
273580R1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026