PartsTable / COMPONENT / M201191
M201191
✓ 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: RUBBER BUTADIENE NITRILE SEALING ELEMENT, case_style: SQUARE, seal_width: 0.563 INCHES NOMINAL IN, outside_diameter: 6.256 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 6.250 INCHES MINIMUM AND 6.256 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-294-0791, 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
M201191
NSN: 5330-00-294-0791 FSC: 5330 CAGE: 61208 — TWIN DISC, INCORPORATED DBA TWIN DISC MID-ATLANTIC (USA)
SPECIFICATIONS
material RUBBER BUTADIENE NITRILE SEALING ELEMENT case_style SQUARE seal_width 0.563 INCHES NOMINAL IN outside_diameter 6.256 INCHES NOMINAL IN surface_treatment PLASTIC CASE housing_bore_diameter 6.250 INCHES MINIMUM AND 6.256 INCHES MAXIMUM IN sealing_element_style ANGULAR accommodated_shaft_diameter 5.000 INCHES NOMINAL IN NSN 5330-00-294-0791
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION
ID: —
CROSS-SECTION
CS: —
SPECIFICATION
Material: —
Durometer: —
Temp: —
PN: M201191
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
• HOUSING BORE DIAMETER: 6.250 INCHES MINIMUM AND 6.256 INCHES MAXIMUM IN
• ACCOMMODATED SHAFT DIAMETER: 5.000 INCHES NOMINAL IN
• SEAL WIDTH: 0.563 INCHES NOMINAL IN
• MATERIAL: RUBBER BUTADIENE NITRILE SEALING ELEMENT
• SEALING ELEMENT STYLE: ANGULAR
• SURFACE TREATMENT: PLASTIC CASE
• OUTSIDE DIAMETER: 6.256 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER 6.250 INCHES MINIMUM AND 6.256 INCHES MAXIMUM IN ACCOMMODATED SHAFT DIAMETER 5.000 INCHES NOMINAL IN SEAL WIDTH 0.563 INCHES NOMINAL IN CASE STYLE SQUARE MATERIAL RUBBER BUTADIENE NITRILE SEALING ELEMENT SEALING ELEMENT STYLE ANGULAR SURFACE TREATMENT PLASTIC CASE OUTSIDE DIAMETER 6.256 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
12-936 Interchangeable interchangeable cross-reference
interchangeable
81349 Interchangeable interchangeable cross-reference
interchangeable
455070RRR Interchangeable Same NIIN cross-reference
interchangeable
LIFECYCLE
Status CANCELLED
Availability —
RoHS Compliant EAR99 Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M201191?
M201191 is a SEAL,PLAIN ENCASED.
What parts can replace M201191?
There are 3 known substitutes for M201191: 12-936, 81349, 455070RRR. Substitute compatibility should be verified for your specific system.
Is M201191 still available?
M201191 is currently cancelled.
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