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400BM228 ✓ 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 SEALING ELEMENT A, case_style: SQUARE, seal_width: 0.703 INCHES NOMINAL IN, outside_diameter: 4.008 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 4.003 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-579-8188, 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
400BM228
NSN: 5330-00-579-8188
FSC: 5330
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialLEATHER SEALING ELEMENT A
case_styleSQUARE
seal_width0.703 INCHES NOMINAL IN
outside_diameter4.008 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter4.003 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter2.875 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-579-8188
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 400BM228 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
•
MATERIAL: LEATHER SEALING ELEMENT A
•
SURFACE TREATMENT: PLASTIC CASE
•
ACCOMMODATED SHAFT DIAMETER: 2.875 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
SEAL WIDTH: 0.703 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 4.003 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
SEALING ELEMENT STYLE: ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALLEATHER SEALING ELEMENT A
SURFACE TREATMENTPLASTIC CASE
ACCOMMODATED SHAFT DIAMETER2.875 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
SEAL WIDTH0.703 INCHES NOMINAL IN
HOUSING BORE DIAMETER4.003 INCHES NOMINAL IN
CASE STYLESQUARE
SEALING ELEMENT STYLEANGULAR
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
OUTSIDE DIAMETER4.008 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
HX-20-1939-9Interchangeable
interchangeable cross-reference
interchangeable
20699/348T-1Interchangeable
interchangeable cross-reference
interchangeable
63111BC20AWGWHITEInterchangeable
interchangeable cross-reference
interchangeable
28-761Interchangeable
interchangeable cross-reference
interchangeable
6S6-18VInterchangeable
interchangeable cross-reference
interchangeable
993L02X1EInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 400BM228?
400BM228 is a SEAL,PLAIN ENCASED.
What parts can replace 400BM228?
There are 19 known substitutes for 400BM228: HX-20-1939-9, 20699/348T-1, 63111BC20AWGWHITE and 16 more. Substitute compatibility should be verified for your specific system.
Is 400BM228 still available?
400BM228 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026