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Technical Data Sheet
PartsTable / COMPONENT / 23E1
23E1 ✓ 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 PLUG,EXPANSION is a the manufacturer industrial component. Key specifications include radius: 0.750 INCHES NOMINAL IN, material: STEEL, outside_diameter: 0.622 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN, style_designator: CONCAVE, material_thickness: 0.065 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-050-1591, 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
23E1
NSN: 5340-00-050-1591
FSC: 5340
CAGE: 73287 — HUBBARD M D SPRING CO INC (USA)
SPECIFICATIONS
radius0.750 INCHES NOMINAL IN
materialSTEEL
outside_diameter0.622 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
style_designatorCONCAVE
material_thickness0.065 INCHES NOMINAL IN
NSN5340-00-050-1591
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 23E1 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
•
OUTSIDE DIAMETER: 0.622 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.065 INCHES NOMINAL IN
•
RADIUS: 0.750 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
STYLE DESIGNATOR: CONCAVE
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.622 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
MATERIAL THICKNESS0.065 INCHES NOMINAL IN
RADIUS0.750 INCHES NOMINAL IN
MATERIALSTEEL
STYLE DESIGNATORCONCAVE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
113987Upgraded Successor
successor cross-reference
successor
8PG93Upgraded Successor
successor cross-reference
successor
103891Upgraded Successor
successor cross-reference
successor
665AUpgraded Successor
successor cross-reference
successor
91-0001Interchangeable
interchangeable cross-reference
interchangeable
91Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 23E1?
23E1 is a PLUG,EXPANSION.
What parts can replace 23E1?
There are 25 known substitutes for 23E1: 113987, 8PG93, 103891 and 22 more. Substitute compatibility should be verified for your specific system.
Is 23E1 still available?
23E1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026