PartsTable
Technical Data Sheet
258237-901 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE CLASS Q, temp_rating: -85.0 FAHRENHEIT AND 401.0 FAHRENHEIT DEGF, hardness_rating: 50.0 SHORE DUROMETER A NOMINAL, outside_diameter: 1.066 INCHES NOMINAL IN, center_hole_diameter: 0.920 INCHES MINIMUM AND 0.932 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-436-7107, 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
258237-901
NSN: 5331-00-436-7107
FSC: 5331 — O-RING
CAGE: 65092 — SOLARTRON ELECTRONICS INC WESTON INSTRUMENTS DIV (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q
temp_rating-85.0 FAHRENHEIT AND 401.0 FAHRENHEIT DEGF
hardness_rating50.0 SHORE DUROMETER A NOMINAL
outside_diameter1.066 INCHES NOMINAL IN
center_hole_diameter0.920 INCHES MINIMUM AND 0.932 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-00-436-7107
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 258237-901 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
CENTER HOLE DIAMETER: 0.920 INCHES MINIMUM AND 0.932 INCHES MAXIMUM IN
HARDNESS RATING: 50.0 SHORE DUROMETER A NOMINAL
TEMP RATING: -85.0 FAHRENHEIT AND 401.0 FAHRENHEIT DEGF
MATERIAL: RUBBER SILICONE CLASS Q
OUTSIDE DIAMETER: 1.066 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER0.920 INCHES MINIMUM AND 0.932 INCHES MAXIMUM IN
HARDNESS RATING50.0 SHORE DUROMETER A NOMINAL
TEMP RATING-85.0 FAHRENHEIT AND 401.0 FAHRENHEIT DEGF
MATERIALRUBBER SILICONE CLASS Q
OUTSIDE DIAMETER1.066 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
ARP568-021MILG23652 TY2Interchangeable
interchangeable cross-reference
interchangeable
AS3581CPInterchangeable
interchangeable cross-reference
interchangeable
ARP568-021MILG23652 TY2CPInterchangeable
interchangeable cross-reference
interchangeable
AS568-021Interchangeable
interchangeable cross-reference
interchangeable
AS568-021D7Interchangeable
interchangeable cross-reference
interchangeable
2-021-S613-60Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 258237-901?
258237-901 is a O-RING.
What parts can replace 258237-901?
There are 11 known substitutes for 258237-901: ARP568-021MILG23652 TY2, AS3581CP, ARP568-021MILG23652 TY2CP and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 258237-901?
258237-901 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-436-7107. This indicates validated use in U.S. government and defense supply chains.
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