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Technical Data Sheet
PartsTable / COMPONENT / A1941PC63
A1941PC63 ✓ 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 is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT, seal_width: 0.250 INCHES NOMINAL IN, temp_rating: -40.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF, construction: SOLID, housing_bore_diameter: 2.375 INCHES NOMINAL IN, accommodated_shaft_diameter: 1.748 INCHES NOMINAL 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 5330-00-481-0268, 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
A1941PC63
NSN: 5330-00-481-0268
FSC: 5330
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
seal_width0.250 INCHES NOMINAL IN
temp_rating-40.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
constructionSOLID
housing_bore_diameter2.375 INCHES NOMINAL IN
accommodated_shaft_diameter1.748 INCHES NOMINAL IN
cross-sectional_shape_styleSINGLE LIP
material_document_and_classificationMIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT
NSN5330-00-481-0268
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A1941PC63 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
•
CONSTRUCTION: SOLID
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
•
CROSS-SECTIONAL SHAPE STYLE: SINGLE LIP
•
HOUSING BORE DIAMETER: 2.375 INCHES NOMINAL IN
•
SEAL WIDTH: 0.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT
•
TEMP RATING: -40.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
•
ACCOMMODATED SHAFT DIAMETER: 1.748 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CONSTRUCTIONSOLID
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
CROSS-SECTIONAL SHAPE STYLESINGLE LIP
HOUSING BORE DIAMETER2.375 INCHES NOMINAL IN
SEAL WIDTH0.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT
TEMP RATING-40.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
ACCOMMODATED SHAFT DIAMETER1.748 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
33885-33821Interchangeable
interchangeable cross-reference
interchangeable
155748DPC39Interchangeable
interchangeable cross-reference
interchangeable
935177-101Interchangeable
interchangeable cross-reference
interchangeable
827978-1Interchangeable
interchangeable cross-reference
interchangeable
11817Interchangeable
interchangeable cross-reference
interchangeable
6110942Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A1941PC63?
A1941PC63 is a SEAL,PLAIN.
What parts can replace A1941PC63?
There are 9 known substitutes for A1941PC63: 33885-33821, 155748DPC39, 935177-101 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A1941PC63?
A1941PC63 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-481-0268. 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