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Technical Data Sheet
PartsTable / COMPONENT / 2587122
2587122 ✓ 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 SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, seal_width: 0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN, temp_rating: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, outside_diameter: 2.378 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-934-0081, 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
2587122
NSN: 5330-00-934-0081
FSC: 5330
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
temp_rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
outside_diameter2.378 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter2.374 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.625 INCHES NOMINAL IN
NSN5330-00-934-0081
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2587122 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: 0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 2.378 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 1.625 INCHES NOMINAL IN
•
MATERIAL: STEEL CASE
•
HOUSING BORE DIAMETER: 2.374 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
TEMP RATING: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
SEAL WIDTH0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
OUTSIDE DIAMETER2.378 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER1.625 INCHES NOMINAL IN
MATERIALSTEEL CASE
HOUSING BORE DIAMETER2.374 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
TEMP RATING-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
SURFACE TREATMENTPLASTIC CASE
CASE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
251452Interchangeable
interchangeable cross-reference
interchangeable
147725Interchangeable
interchangeable cross-reference
interchangeable
MS90726-114Interchangeable
interchangeable cross-reference
interchangeable
16085Interchangeable
interchangeable cross-reference
interchangeable
601D5Interchangeable
interchangeable cross-reference
interchangeable
602D5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2587122?
2587122 is a SEAL,PLAIN ENCASED.
What parts can replace 2587122?
There are 6 known substitutes for 2587122: 251452, 147725, MS90726-114 and 3 more. Substitute compatibility should be verified for your specific system.
Is 2587122 still available?
2587122 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026