PartsTable
Technical Data Sheet
E5-45-656 ✓ 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 CUP,COMPRESSION is a the manufacturer industrial component. Key specifications include material: RUBBER POLYISOPRENE NATURAL CLASS NR OR RUBBER SYNTHETIC OVERALL, overall_length: 0.562 INCHES NOMINAL IN, overall_diameter: 2.625 INCHES NOMINAL IN, feather_edge_angle: 6.3 DEGREES NOMINAL, base_material_thickness: 0.188 INCHES NOMINAL IN, recess_major_inside_diameter: 2.250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-163-5527, 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
E5-45-656
NSN: 5340-00-163-5527
FSC: 5340
CAGE: 81361 — EDGEWOOD CHEMICAL BIOLOGICAL CENTER ECBC (USA)
SPECIFICATIONS
materialRUBBER POLYISOPRENE NATURAL CLASS NR OR RUBBER SYNTHETIC OVERALL
overall_length0.562 INCHES NOMINAL IN
overall_diameter2.625 INCHES NOMINAL IN
feather_edge_angle6.3 DEGREES NOMINAL
base_material_thickness0.188 INCHES NOMINAL IN
recess_major_inside_diameter2.250 INCHES NOMINAL IN
NSN5340-00-163-5527
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: E5-45-656 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
RECESS MAJOR INSIDE DIAMETER: 2.250 INCHES NOMINAL IN
FEATHER EDGE ANGLE: 6.3 DEGREES NOMINAL
BASE MATERIAL THICKNESS: 0.188 INCHES NOMINAL IN
OVERALL DIAMETER: 2.625 INCHES NOMINAL IN
MATERIAL: RUBBER POLYISOPRENE NATURAL CLASS NR OR RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
RECESS MAJOR INSIDE DIAMETER2.250 INCHES NOMINAL IN
FEATHER EDGE ANGLE6.3 DEGREES NOMINAL
BASE MATERIAL THICKNESS0.188 INCHES NOMINAL IN
OVERALL DIAMETER2.625 INCHES NOMINAL IN
MATERIALRUBBER POLYISOPRENE NATURAL CLASS NR OR RUBBER SYNTHETIC OVERALL
OVERALL LENGTH0.562 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
34134Upgraded Successor
successor cross-reference
successor
21278Upgraded Successor
successor cross-reference
successor
10C-0005-11Interchangeable
interchangeable cross-reference
interchangeable
8148650Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-25777Interchangeable
interchangeable cross-reference
interchangeable
187673PC306Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is E5-45-656?
E5-45-656 is a CUP,COMPRESSION.
What parts can replace E5-45-656?
There are 19 known substitutes for E5-45-656: 34134, 21278, 10C-0005-11 and 16 more. Substitute compatibility should be verified for your specific system.
Is E5-45-656 still available?
E5-45-656 is currently cancelled.
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