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Technical Data Sheet
PartsTable / COMPONENT / 83687 ITEM 20
83687 ITEM 20 ✓ 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 COVER,ACCESS is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-315-8831, 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
83687 ITEM 20
NSN: 5340-01-315-8831
FSC: 5340
CAGE: 01379 — EMERSON PROCESS MANAGEMENT VALVE AUTOMATION, INC. (USA)
SPECIFICATIONS
Part Number83687 ITEM 20
NSN5340-01-315-8831
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 83687 ITEM 20 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
11072902Interchangeable
interchangeable cross-reference
interchangeable
SLU125Interchangeable
interchangeable cross-reference
interchangeable
D1192SH1Interchangeable
interchangeable cross-reference
interchangeable
3550-1Interchangeable
interchangeable cross-reference
interchangeable
355.006Interchangeable
interchangeable cross-reference
interchangeable
355.01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 83687 ITEM 20?
83687 ITEM 20 is a COVER,ACCESS.
What parts can replace 83687 ITEM 20?
There are 6 known substitutes for 83687 ITEM 20: 11072902, SLU125, D1192SH1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 83687 ITEM 20?
83687 ITEM 20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-315-8831. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026