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Technical Data Sheet
PartsTable / COMPONENT / 28421-94
28421-94 ✓ 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 PACKING,PREFORMED is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-207-7603, 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
28421-94
NSN: 5330-01-207-7603
FSC: 5330
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part Number28421-94
NSN5330-01-207-7603
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 28421-94 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
28674Interchangeable
interchangeable cross-reference
interchangeable
28421Interchangeable
interchangeable cross-reference
interchangeable
B-28421Interchangeable
interchangeable cross-reference
interchangeable
028 09378 000Interchangeable
interchangeable cross-reference
interchangeable
D50265 ITEM 30Interchangeable
interchangeable cross-reference
interchangeable
NK1648Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 28421-94?
28421-94 is a PACKING,PREFORMED.
What parts can replace 28421-94?
There are 9 known substitutes for 28421-94: 28674, 28421, B-28421 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 28421-94?
28421-94 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-207-7603. 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