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Technical Data Sheet
PartsTable / COMPONENT / 55071S26
55071S26 ✓ 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: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT, case_style: SQUARE, seal_width: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN, outside_diameter: 6.381 INCHES NOMINAL IN, housing_bore_diameter: 6.375 INCHES NOMINAL IN, sealing_element_style: ANGULAR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-641-3091, 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
55071S26
NSN: 5330-00-641-3091
FSC: 5330
CAGE: 76680 — FEDERAL-MOGUL CORP CHASSIS PRODUCTS DIV (USA)
SPECIFICATIONS
materialLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
case_styleSQUARE
seal_width0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
outside_diameter6.381 INCHES NOMINAL IN
housing_bore_diameter6.375 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter5.125 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-641-3091
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 55071S26 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
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
SEAL WIDTH: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
•
MATERIAL: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
•
ACCOMMODATED SHAFT DIAMETER: 5.125 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 6.381 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
CASE STYLE: SQUARE
•
HOUSING BORE DIAMETER: 6.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
SEAL WIDTH0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
MATERIALLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
ACCOMMODATED SHAFT DIAMETER5.125 INCHES NOMINAL IN
OUTSIDE DIAMETER6.381 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
CASE STYLESQUARE
HOUSING BORE DIAMETER6.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
PF440Interchangeable
interchangeable cross-reference
interchangeable
313117C92Interchangeable
interchangeable cross-reference
interchangeable
7136015Interchangeable
interchangeable cross-reference
interchangeable
000578345-98189Interchangeable
interchangeable cross-reference
interchangeable
51250Interchangeable
interchangeable cross-reference
interchangeable
5100-250Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55071S26?
55071S26 is a SEAL,PLAIN ENCASED.
What parts can replace 55071S26?
There are 21 known substitutes for 55071S26: PF440, 313117C92, 7136015 and 18 more. Substitute compatibility should be verified for your specific system.
Is 55071S26 still available?
55071S26 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