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28238 ✓ 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

PARTS KIT,HYDRAULIC BRAKE WHEEL. Key specifications include material: ASBESTOS OVERALL, body_width: 4.840 INCHES NOMINAL IN, body_height: 6.220 INCHES NOMINAL IN, body_length: 5.340 INCHES NOMINAL IN, overall_width: 5.625 INCHES NOMINAL IN, aperture_width: 4.375 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-291-3782, 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
28238
NSN: 5330-00-291-3782
FSC: 5330
CAGE: 79150 — DANA AUTOMOTIVE SYSTEMS GROUP, LLC DBA DANA SEALING PRODUCTS (USA)
SPECIFICATIONS
materialASBESTOS OVERALL
body_width4.840 INCHES NOMINAL IN
body_height6.220 INCHES NOMINAL IN
body_length5.340 INCHES NOMINAL IN
overall_width5.625 INCHES NOMINAL IN
aperture_width4.375 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
overall_length21.250 INCHES NOMINAL IN
aperture_length20.500 INCHES NOMINAL IN
mounting_methodTHREADED STUD(S) SINGLE GROUP
frequency_rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
style_designatorNON-CIRCULAR
NSN5330-00-291-3782
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 28238 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
•
STYLE DESIGNATOR: NON-CIRCULAR
•
MATERIAL: ASBESTOS OVERALL
•
INSIDE CORNER RADIUS: 1.625 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.094 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE LENGTH: 20.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH5.625 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
OVERALL LENGTH21.250 INCHES NOMINAL IN
MATERIALASBESTOS OVERALL
INSIDE CORNER RADIUS1.625 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.094 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
APERTURE LENGTH20.500 INCHES NOMINAL IN
APERTURE WIDTH4.375 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS2.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
934012Interchangeable
interchangeable cross-reference
interchangeable
804777-00Interchangeable
interchangeable cross-reference
interchangeable
902-12-711-70Interchangeable
interchangeable cross-reference
interchangeable
74101Interchangeable
interchangeable cross-reference
interchangeable
3018899Interchangeable
interchangeable cross-reference
interchangeable
1286274-101Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 28238?
28238 is a PARTS KIT,HYDRAULIC BRAKE WHEEL.
What parts can replace 28238?
There are 18 known substitutes for 28238: 934012, 804777-00, 902-12-711-70 and 15 more. Substitute compatibility should be verified for your specific system.
Is 28238 still available?
28238 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