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Technical Data Sheet
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98255 — Technical Data Sheet

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— · 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 SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include end_item_identification: W/S SUPPLY CLASS AOE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5330-01-037-7199, 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
98255
NSN: 5330-01-037-7199
FSC: 5330
CAGE: 5RQL2 — DRS ENVIRONMENTAL SYSTEMS INC (USA)
SPECIFICATIONS
end_item_identificationW/S SUPPLY CLASS AOE
NSN5330-01-037-7199
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 98255 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
•
APERTURE DIAMETER: 8.250 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 13.500 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 11.750 INCHES NOMINAL IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR OVERALL
•
BOLT HOLE QUANTITY: 8
•
CROSS-SECTIONAL THICKNESS: 0.250 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.812 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS
APERTURE DIAMETER8.250 INCHES NOMINAL IN
OUTSIDE DIAMETER13.500 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER11.750 INCHES NOMINAL IN
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
BOLT HOLE QUANTITY8
CROSS-SECTIONAL THICKNESS0.250 INCHES NOMINAL IN
HOLE DIAMETER0.812 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
STYLE DESIGNATORCIRCULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
SK-3672InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SK-3672 ITEM 27InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 98255?
98255 is a SHAFT,SHOULDERED.
What parts can replace 98255?
There are 2 known substitutes for 98255: SK-3672, SK-3672 ITEM 27. Substitute compatibility should be verified for your specific system.
What is the NSN for 98255?
98255 is cataloged in the Federal Logistics Information System under NSN 5330-01-037-7199. 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: October 2026