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F028858 — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

F028858: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: FIBER NONASBESTOS BACKING, seal_width: 0.625 INCHES NOMINAL IN, construction: ONE-PIECE, end_item_identification: ASSEMBLY ENDSTAND AFT, accommodated_shaft_diameter: 8.000 INCHES NOMINAL IN, cross-sectional_shape_style: SINGLE LIP. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-573-1289, 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
F028858
NSN: 5330-01-573-1289
FSC: 5330 — Packing and Gasket Materials
CAGE: 34712 — LAKE SHORE SYSTEMS, INC. (USA)
SPECIFICATIONS
materialFIBER NONASBESTOS BACKING
seal_width0.625 INCHES NOMINAL IN
constructionONE-PIECE
end_item_identificationASSEMBLY ENDSTAND AFT
accommodated_shaft_diameter8.000 INCHES NOMINAL IN
cross-sectional_shape_styleSINGLE LIP
part_name_assigned_by_controlling_agencyGREASE SEAL
NSN5330-01-573-1289
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: F028858 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: 0.625 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SINGLE LIP
•
ACCOMMODATED SHAFT DIAMETER: 8.000 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.625 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESINGLE LIP
ACCOMMODATED SHAFT DIAMETER8.000 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYGREASE SEAL
END ITEM IDENTIFICATIONASSEMBLY ENDSTAND AFT
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
MATERIALSTEEL COMP 302 SPRING
MATERIALFIBER NONASBESTOS BACKING
CONSTRUCTIONONE-PIECE
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 1
F028723 ITEM 5Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is F028858?
F028858 is a SEAL,PLAIN.
What parts can replace F028858?
There is 1 known substitute for F028858: F028723 ITEM 5. Substitute compatibility should be verified for your specific system.
What is the NSN for F028858?
F028858 is cataloged in the U.S. Government catalog under NSN 5330-01-573-1289. This indicates validated use in U.S. government and defense supply chains.
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