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PartsTable / COMPONENT / B88004
B88004 ✓ 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: 0.375 INCHES NOMINAL IN, surface_treatment: ZINC CASE, housing_bore_diameter: 1.219 INCHES NOMINAL IN, sealing_element_style: ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-965-0743, 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
B88004
NSN: 5330-00-965-0743
FSC: 5330
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.375 INCHES NOMINAL IN
surface_treatmentZINC CASE
housing_bore_diameter1.219 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter0.562 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed3000 FEET PER MINUTE FT
NSN5330-00-965-0743
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B88004 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
•
SEAL WIDTH: 0.375 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 3000 FEET PER MINUTE FT
•
ACCOMMODATED SHAFT DIAMETER: 0.562 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
MATERIAL: STEEL CASE
•
SURFACE TREATMENT: ZINC CASE
TECHNICAL CHARACTERISTICS (FLIS)
SEAL WIDTH0.375 INCHES NOMINAL IN
CASE STYLESQUARE
ACCOMMODATED SHAFT MAXIMUM RATED SPEED3000 FEET PER MINUTE FT
ACCOMMODATED SHAFT DIAMETER0.562 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SURFACE TREATMENTZINC CASE
HOUSING BORE DIAMETER1.219 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
SS798BInterchangeable
interchangeable cross-reference
interchangeable
PS377458Interchangeable
interchangeable cross-reference
interchangeable
88004Interchangeable
interchangeable cross-reference
interchangeable
N88004Interchangeable
interchangeable cross-reference
interchangeable
10652582Interchangeable
interchangeable cross-reference
interchangeable
5HM06Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B88004?
B88004 is a SEAL,PLAIN ENCASED.
What parts can replace B88004?
There are 9 known substitutes for B88004: SS798B, PS377458, 88004 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B88004?
B88004 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-965-0743. 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