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90X400 — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

90X400: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING SPRING, seal_width: 0.500 INCHES NOMINAL IN, construction: SPLIT, hardness_rating: 77.0 SHORE DUROMETER A NOMINAL SEALING ELEMENT, housing_bore_diameter: 5.000 INCHES NOMINAL IN, accommodated_shaft_diameter: 4.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-178-7422, 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
90X400
NSN: 5330-01-178-7422
NIINs: 011787422, 012728335
FSC: 5330 — Packing and Gasket Materials
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING SPRING
seal_width0.500 INCHES NOMINAL IN
constructionSPLIT
hardness_rating77.0 SHORE DUROMETER A NOMINAL SEALING ELEMENT
housing_bore_diameter5.000 INCHES NOMINAL IN
accommodated_shaft_diameter4.000 INCHES NOMINAL IN
cross-sectional_shape_styleSINGLE LIP
NSN5330-01-178-7422
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 90X400 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
SUBSTITUTES & CROSS-REFERENCES 3
DGR4350B PART 153Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
18C39-AReference document
Same NSN cross-reference
Reference document — Secondary reference
10175RUPSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90X400?
90X400 is a SEAL,PLAIN.
What parts can replace 90X400?
There are 3 known substitutes for 90X400: DGR4350B PART 153, 18C39-A, 10175RUP. Substitute compatibility should be verified for your specific system.
What is the NSN for 90X400?
90X400 is cataloged in the U.S. Government catalog under NSN 5330-01-178-7422. This indicates validated use in U.S. government and defense supply chains.
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