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Technical Data Sheet
PartsTable / COMPONENT / 1-12776-5000
1-12776-5000 ✓ 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: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT B, case_style: SQUARE, seal_width: 0.500 INCHES NOMINAL IN, special_features: WITH PROTECTIVE INNER CASE, surface_treatment: PHOSPHATE CASE, housing_bore_diameter: 4.751 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 5330-00-494-2433, 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
1-12776-5000
NSN: 5330-00-494-2433
FSC: 5330
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT B
case_styleSQUARE
seal_width0.500 INCHES NOMINAL IN
special_featuresWITH PROTECTIVE INNER CASE
surface_treatmentPHOSPHATE CASE
housing_bore_diameter4.751 INCHES NOMINAL IN
sealing_element_styleANGULAR-OPPOSED
accommodated_shaft_diameter3.500 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed3000 FEET PER MINUTE FT
NSN5330-00-494-2433
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1-12776-5000 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
•
CASE STYLE: SQUARE
•
SEAL WIDTH: 0.500 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 3000 FEET PER MINUTE FT
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT A
•
SURFACE TREATMENT: PHOSPHATE CASE
•
ACCOMMODATED SHAFT DIAMETER: 3.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESWITH PROTECTIVE INNER CASE
CASE STYLESQUARE
SEAL WIDTH0.500 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED3000 FEET PER MINUTE FT
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT A
SURFACE TREATMENTPHOSPHATE CASE
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT B
ACCOMMODATED SHAFT DIAMETER3.500 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR-OPPOSED
HOUSING BORE DIAMETER4.751 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
356012Interchangeable
interchangeable cross-reference
interchangeable
41537Interchangeable
interchangeable cross-reference
interchangeable
42198Interchangeable
interchangeable cross-reference
interchangeable
42906Interchangeable
interchangeable cross-reference
interchangeable
41534Interchangeable
interchangeable cross-reference
interchangeable
ROM/PROM FAMILY 237Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1-12776-5000?
1-12776-5000 is a SEAL,PLAIN ENCASED.
What parts can replace 1-12776-5000?
There are 12 known substitutes for 1-12776-5000: 356012, 41537, 42198 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1-12776-5000?
1-12776-5000 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-494-2433. 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