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Technical Data Sheet
PartsTable / COMPONENT / 0S1875-4
0S1875-4 ✓ 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: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT, case_style: SQUARE, seal_width: 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN, housing_bore_diameter: 2.875 INCHES NOMINAL IN, sealing_element_style: ANGULAR, end_item_identification: W/S: CAPSTANS; STEERING EQUIPMENT; POWHATAN CLASS T-AFT 166; SHIPBOARD MATERIAL HANDLING EQUIPMENT (MHE). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-285-8282, 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
0S1875-4
NSN: 5330-00-285-8282
FSC: 5330
CAGE: 24981 — APACHE CORP GITS BROS MFG CO (USA)
SPECIFICATIONS
materialLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
case_styleSQUARE
seal_width0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
housing_bore_diameter2.875 INCHES NOMINAL IN
sealing_element_styleANGULAR
end_item_identificationW/S: CAPSTANS; STEERING EQUIPMENT; POWHATAN CLASS T-AFT 166; SHIPBOARD MATERIAL HANDLING EQUIPMENT (MHE)
accommodated_shaft_diameter1.875 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-285-8282
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 0S1875-4 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
•
ACCOMMODATED SHAFT DIAMETER: 1.875 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
SEALING ELEMENT STYLE: ANGULAR
•
MATERIAL: STEEL CASE
•
HOUSING BORE DIAMETER: 2.875 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONW/S: CAPSTANS; STEERING EQUIPMENT; POWHATAN CLASS T-AFT 166; SHIPBOARD MATERIAL HANDLING EQUIPMENT (MHE)
ACCOMMODATED SHAFT DIAMETER1.875 INCHES NOMINAL IN
CASE STYLESQUARE
SEALING ELEMENT STYLEANGULAR
MATERIALSTEEL CASE
HOUSING BORE DIAMETER2.875 INCHES NOMINAL IN
MATERIALLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
SEAL WIDTH0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
00044TY1CASE2BELEMENTInterchangeable
interchangeable cross-reference
interchangeable
00044Interchangeable
interchangeable cross-reference
interchangeable
GPW13150Interchangeable
interchangeable cross-reference
interchangeable
GPW13150CInterchangeable
interchangeable cross-reference
interchangeable
500LXInterchangeable
interchangeable cross-reference
interchangeable
50779Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0S1875-4?
0S1875-4 is a SEAL,PLAIN ENCASED.
What parts can replace 0S1875-4?
There are 19 known substitutes for 0S1875-4: 00044TY1CASE2BELEMENT, 00044, GPW13150 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 0S1875-4?
0S1875-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-285-8282. 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: July 2026