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Technical Data Sheet
PartsTable / COMPONENT / 757147
757147 ✓ 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, case_style: RECESSED, seal_width: 0.250 INCHES NOMINAL IN, outside_diameter: 1.878 INCHES NOMINAL IN, surface_treatment: PRIMER ZINC CASE, housing_bore_diameter: 1.875 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 5330-01-068-3464, 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
757147
NSN: 5330-01-068-3464
FSC: 5330
CAGE: 18894 — AIR ARMAMENT CENTER/ EN (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
case_styleRECESSED
seal_width0.250 INCHES NOMINAL IN
outside_diameter1.878 INCHES NOMINAL IN
surface_treatmentPRIMER ZINC CASE
housing_bore_diameter1.875 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.250 INCHES NOMINAL IN
material_document_and_classification12379 FSCM 80201ADTY MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT
surface_treatment_document_and_classificationMIL-P-26915 TY 1CL A MIL SPEC SINGLE TREATMENT RESPONSE SEALING ELEMENT
NSN5330-01-068-3464
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 757147 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
•
HOUSING BORE DIAMETER: 1.875 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
•
MATERIAL DOCUMENT AND CLASSIFICATION: 12379 FSCM 80201ADTY MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-P-26915 TY 1CL A MIL SPEC SINGLE TREATMENT RESPONSE SEALING ELEMENT
•
OUTSIDE DIAMETER: 1.878 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 1.250 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
CASE STYLE: RECESSED
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER1.875 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
MATERIAL DOCUMENT AND CLASSIFICATION12379 FSCM 80201ADTY MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-P-26915 TY 1CL A MIL SPEC SINGLE TREATMENT RESPONSE SEALING ELEMENT
OUTSIDE DIAMETER1.878 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER1.250 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
CASE STYLERECESSED
SEAL WIDTH0.250 INCHES NOMINAL IN
SURFACE TREATMENTPRIMER ZINC CASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
12379Interchangeable
interchangeable cross-reference
interchangeable
212348Interchangeable
interchangeable cross-reference
interchangeable
23753Interchangeable
interchangeable cross-reference
interchangeable
77819HInterchangeable
interchangeable cross-reference
interchangeable
187HD18Interchangeable
interchangeable cross-reference
interchangeable
619D931 PIECE 13Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 757147?
757147 is a SEAL,PLAIN ENCASED.
What parts can replace 757147?
There are 11 known substitutes for 757147: 12379, 212348, 23753 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 757147?
757147 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-068-3464. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026