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Technical Data Sheet
PartsTable / COMPONENT / 340-5/8
340-5/8 ✓ 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 340-5/8 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-088-3810, 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
340-5/8
NSN: 5340-01-088-3810
FSC: 5340
CAGE: 06762 — RIDGEWAY MANUFACTURING CORPORATION (USA)
SPECIFICATIONS
Part Number340-5/8
NSN5340-01-088-3810
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 340-5/8 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: IRON CAST OR IRON MALLEABLE HOOK
•
HOOK STYLE DESIGNATOR: SPRING BLADE
•
RUBBER COVERED FEATURE: NOT INCLUDED
•
END POSITION: CONNECTION END IN SAME PLANE AS HOOK END
•
DESIGN TYPE: FIXED
•
UNATTACHED RING: NOT INCLUDED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALIRON CAST OR IRON MALLEABLE HOOK
MATERIALSTEEL BLADE
HOOK STYLE DESIGNATORSPRING BLADE
RUBBER COVERED FEATURENOT INCLUDED
END POSITIONCONNECTION END IN SAME PLANE AS HOOK END
DESIGN TYPEFIXED
UNATTACHED RINGNOT INCLUDED
OVERALL LENGTH1.688 INCHES NOMINAL IN
UNIT PACKAGE TYPEBOX
END CONNECTION STYLELOOP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
24233Interchangeable
interchangeable cross-reference
interchangeable
22615Interchangeable
interchangeable cross-reference
interchangeable
B94.2-95 TABLE 25Interchangeable
interchangeable cross-reference
interchangeable
104463Interchangeable
interchangeable cross-reference
interchangeable
34058Interchangeable
interchangeable cross-reference
interchangeable
ICC7489Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 340-5/8?
340-5/8 is a 340-5/8.
What parts can replace 340-5/8?
There are 15 known substitutes for 340-5/8: 24233, 22615, B94.2-95 TABLE 25 and 12 more. Substitute compatibility should be verified for your specific system.
Is 340-5/8 still available?
340-5/8 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