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Technical Data Sheet
PartsTable / COMPONENT / 871-698-040
871-698-040 ✓ 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 FLUOROCARBON CLASS FPM OVERALL, case_style: RECESSED, seal_width: 0.438 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 3.875 INCHES NOMINAL IN, sealing_element_style: ANGULAR-OPPOSED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-424-3363, 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
871-698-040
NSN: 5330-01-424-3363
FSC: 5330
CAGE: 51729 — DRESSER, INC. DBA DRESSER ROOTS BLOWERS & COMPRESSORS DIV DRESSER ROOTS (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM OVERALL
case_styleRECESSED
seal_width0.438 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter3.875 INCHES NOMINAL IN
sealing_element_styleANGULAR-OPPOSED
accommodated_shaft_diameter2.875 INCHES NOMINAL IN
NSN5330-01-424-3363
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 871-698-040 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: 3.875 INCHES NOMINAL IN
•
CASE STYLE: RECESSED
•
ACCOMMODATED SHAFT DIAMETER: 2.875 INCHES NOMINAL IN
•
SEAL WIDTH: 0.438 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR-OPPOSED
•
SURFACE TREATMENT: PLASTIC CASE
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER3.875 INCHES NOMINAL IN
CASE STYLERECESSED
ACCOMMODATED SHAFT DIAMETER2.875 INCHES NOMINAL IN
SEAL WIDTH0.438 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR-OPPOSED
SURFACE TREATMENTPLASTIC CASE
MATERIALRUBBER FLUOROCARBON CLASS FPM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
28748Interchangeable
interchangeable cross-reference
interchangeable
500-28355Interchangeable
interchangeable cross-reference
interchangeable
500-28355 ITEM 3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 871-698-040?
871-698-040 is a SEAL,PLAIN ENCASED.
What parts can replace 871-698-040?
There are 3 known substitutes for 871-698-040: 28748, 500-28355, 500-28355 ITEM 3. Substitute compatibility should be verified for your specific system.
What is the NSN for 871-698-040?
871-698-040 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-424-3363. 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