PartsTable
Technical Data Sheet
PartsTable / O-RING / 845-1889587,PC 19
845-1889587,PC 19 ✓ 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 845-1889587,PC 19 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-240-9452, 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
845-1889587,PC 19
NSN: 5331-01-240-9452
FSC: 5331 — O-RING
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number845-1889587,PC 19
NSN5331-01-240-9452
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 845-1889587,PC 19 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
•
ELONGATION PERCENTAGE: 160 MAXIMUM
•
CRITICALITY CODE JUSTIFICATION: ZZZW
•
TEMP RATING: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
•
CENTER HOLE DIAMETER: 0.795 INCHES MINIMUM AND 0.807 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
DEPARTURE FROM CITED DOCUMENT: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
•
PERIPHERAL DIAMETER: 0.941 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
ELONGATION PERCENTAGE160 MAXIMUM
CRITICALITY CODE JUSTIFICATIONZZZW
TEMP RATING-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
CENTER HOLE DIAMETER0.795 INCHES MINIMUM AND 0.807 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
PART NAME ASSIGNED BY CONTROLLING AGENCY0-RING
DEPARTURE FROM CITED DOCUMENTMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
PERIPHERAL DIAMETER0.941 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
AS28775Interchangeable
interchangeable cross-reference
interchangeable
280090-12 ITEM 61Interchangeable
interchangeable cross-reference
interchangeable
4067-70-019Interchangeable
interchangeable cross-reference
interchangeable
MS28778-6Interchangeable
interchangeable cross-reference
interchangeable
3297-6LW90Interchangeable
interchangeable cross-reference
interchangeable
845-2110254PC6Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 845-1889587,PC 19?
845-1889587,PC 19 is a 845-1889587,PC 19.
What parts can replace 845-1889587,PC 19?
There are 11 known substitutes for 845-1889587,PC 19: AS28775, 280090-12 ITEM 61, 4067-70-019 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 845-1889587,PC 19?
845-1889587,PC 19 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-240-9452. 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