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PartsTable / COMPONENT / A7799-17
A7799-17 ✓ 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: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN, temp_rating: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF, outside_diameter: 1.878 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-261-4436, 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
A7799-17
NSN: 5330-00-261-4436
FSC: 5330
CAGE: 38151 — MARATHON ELECTRIC, LLC (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
temp_rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
outside_diameter1.878 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter1.874 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.156 INCHES NOMINAL IN
NSN5330-00-261-4436
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A7799-17 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 DIAMETER: 1.156 INCHES NOMINAL IN
•
SURFACE TREATMENT: PLASTIC CASE
•
OUTSIDE DIAMETER: 1.878 INCHES NOMINAL IN
•
SEAL WIDTH: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT A
•
TEMP RATING: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT DIAMETER1.156 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
OUTSIDE DIAMETER1.878 INCHES NOMINAL IN
SEAL WIDTH0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT A
TEMP RATING-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
MATERIALSTEEL CASE
CASE STYLESQUARE
HOUSING BORE DIAMETER1.874 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
11524Interchangeable
interchangeable cross-reference
interchangeable
49724Interchangeable
interchangeable cross-reference
interchangeable
R51Interchangeable
interchangeable cross-reference
interchangeable
15124Interchangeable
interchangeable cross-reference
interchangeable
512LXInterchangeable
interchangeable cross-reference
interchangeable
52945AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A7799-17?
A7799-17 is a SEAL,PLAIN ENCASED.
What parts can replace A7799-17?
There are 20 known substitutes for A7799-17: 11524, 49724, R51 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A7799-17?
A7799-17 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-261-4436. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026