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77941 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

77941: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT, case_style: SQUARE, seal_width: 0.375 INCHES NOMINAL IN, outside_diameter: 3.628 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 3.623 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-010-9790, 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
77941
NSN: 5330-00-010-9790
FSC: 5330 — Packing and Gasket Materials
CAGE: 81142 — EATON CORP AXLE DIV (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleSQUARE
seal_width0.375 INCHES NOMINAL IN
outside_diameter3.628 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter3.623 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter2.625 INCHES NOMINAL IN
NSN5330-00-010-9790
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 77941 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
•
SEAL WIDTH: 0.375 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
OUTSIDE DIAMETER: 3.628 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 3.623 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 2.625 INCHES NOMINAL IN
•
SURFACE TREATMENT: PLASTIC CASE
•
MATERIAL: STEEL CORROSION RESISTING CASE
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.375 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
OUTSIDE DIAMETER3.628 INCHES NOMINAL IN
HOUSING BORE DIAMETER3.623 INCHES NOMINAL IN
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER2.625 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
MATERIALSTEEL CORROSION RESISTING CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 2
521353Reference document
Same NSN cross-reference
Reference document — Secondary reference
9035595Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 77941?
77941 is a SEAL,PLAIN ENCASED.
What parts can replace 77941?
There are 2 known substitutes for 77941: 521353, 9035595. Substitute compatibility should be verified for your specific system.
What is the NSN for 77941?
77941 is cataloged in the U.S. Government catalog under NSN 5330-00-010-9790. This indicates validated use in U.S. government and defense supply chains.
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