PartsTable
Technical Data Sheet
340787R ✓ 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 seal_width: 0.250 INCHES NOMINAL IN, construction: SOLID, housing_bore_diameter: 1.375 INCHES NOMINAL IN, accommodated_shaft_diameter: 0.938 INCHES NOMINAL IN, cross-sectional_shape_style: SINGLE LIP, material_document_and_classification: ASTM D2000,5BG910A1B1E3 ASSN STD ALL MATERIAL RESPONSES SEALING ELEMENT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-928-0303, 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
340787R
NSN: 5330-00-928-0303
FSC: 5330
CAGE: 76680 — FEDERAL-MOGUL CORP CHASSIS PRODUCTS DIV (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU SEALING ELEMENT
seal_width0.250 INCHES NOMINAL IN
constructionSOLID
housing_bore_diameter1.375 INCHES NOMINAL IN
accommodated_shaft_diameter0.938 INCHES NOMINAL IN
cross-sectional_shape_styleSINGLE LIP
material_document_and_classificationASTM D2000,5BG910A1B1E3 ASSN STD ALL MATERIAL RESPONSES SEALING ELEMENT
NSN5330-00-928-0303
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 340787R 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
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU SEALING ELEMENT
HOUSING BORE DIAMETER: 1.375 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLE: SINGLE LIP
ACCOMMODATED SHAFT DIAMETER: 0.938 INCHES NOMINAL IN
CONSTRUCTION: SOLID
SEAL WIDTH: 0.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000,5BG910A1B1E3 ASSN STD ALL MATERIAL RESPONSES SEALING ELEMENT
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU SEALING ELEMENT
HOUSING BORE DIAMETER1.375 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESINGLE LIP
ACCOMMODATED SHAFT DIAMETER0.938 INCHES NOMINAL IN
CONSTRUCTIONSOLID
SEAL WIDTH0.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000,5BG910A1B1E3 ASSN STD ALL MATERIAL RESPONSES SEALING ELEMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
AA52524/13-27-3Interchangeable
interchangeable cross-reference
interchangeable
A-A-52524/13Interchangeable
interchangeable cross-reference
interchangeable
MS51001-27-3Interchangeable
interchangeable cross-reference
interchangeable
AA52524/13-1-3Interchangeable
interchangeable cross-reference
interchangeable
AA52524-13-1-3Interchangeable
interchangeable cross-reference
interchangeable
MS51001-11-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 340787R?
340787R is a SEAL,PLAIN.
What parts can replace 340787R?
There are 26 known substitutes for 340787R: AA52524/13-27-3, A-A-52524/13, MS51001-27-3 and 23 more. Substitute compatibility should be verified for your specific system.
Is 340787R still available?
340787R is currently cancelled.
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