PartsTable
Technical Data Sheet
MS51909-17-3 ✓ 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: FLANGED, seal_width: 0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN, housing_bore_diameter: 5.7485 INCHES MINIMUM AND 5.7515 INCHES MAXIMUM IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 4.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-291-2821, 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
MS51909-17-3
NSN: 5330-00-291-2821
FSC: 5330
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
case_styleFLANGED
seal_width0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
housing_bore_diameter5.7485 INCHES MINIMUM AND 5.7515 INCHES MAXIMUM IN
sealing_element_styleANGULAR
accommodated_shaft_diameter4.000 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed1600 FEET PER MINUTE FT
NSN5330-00-291-2821
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS51909-17-3 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: 5.7485 INCHES MINIMUM AND 5.7515 INCHES MAXIMUM IN
ACCOMMODATED SHAFT DIAMETER: 4.000 INCHES NOMINAL IN
SEAL WIDTH: 0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 1600 FEET PER MINUTE FT
MATERIAL: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
SEALING ELEMENT STYLE: ANGULAR
CASE STYLE: FLANGED
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER5.7485 INCHES MINIMUM AND 5.7515 INCHES MAXIMUM IN
ACCOMMODATED SHAFT DIAMETER4.000 INCHES NOMINAL IN
SEAL WIDTH0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1600 FEET PER MINUTE FT
MATERIALLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
SEALING ELEMENT STYLEANGULAR
CASE STYLEFLANGED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
5000/02Interchangeable
interchangeable cross-reference
interchangeable
5002/02Interchangeable
interchangeable cross-reference
interchangeable
AP156Interchangeable
interchangeable cross-reference
interchangeable
50-0202Interchangeable
interchangeable cross-reference
interchangeable
CAE26-01Interchangeable
interchangeable cross-reference
interchangeable
1142717Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy MS51909-17-3?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MS51909-17-3?
MS51909-17-3 is a SEAL,PLAIN ENCASED.
What parts can replace MS51909-17-3?
There are 6 known substitutes for MS51909-17-3: 5000/02, 5002/02, AP156 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51909-17-3?
MS51909-17-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-291-2821. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MS51909-17-3