PartsTable
Technical Data Sheet
SIZE220 ✓ 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

CAP-PLUG,PROTECTIVE,DUST AND MOI. Key specifications include material: PLASTIC, length_under_shoulder: 1.000 INCHES NOMINAL IN, open_end_inside_diameter: 2.070 INCHES NOMINAL IN, closed_end_overall_diameter: 1.975 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-290-7239, 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
SIZE220
NSN: 5340-00-290-7239
FSC: 5340
CAGE: 95760 — PROTECTIVE CLOSURES CO INC (USA)
SPECIFICATIONS
materialPLASTIC
length_under_shoulder1.000 INCHES NOMINAL IN
open_end_inside_diameter2.070 INCHES NOMINAL IN
closed_end_overall_diameter1.975 INCHES NOMINAL IN
NSN5340-00-290-7239
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SIZE220 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: PLASTIC
OPEN END INSIDE DIAMETER: 2.070 INCHES NOMINAL IN
CLOSED END OVERALL DIAMETER: 1.975 INCHES NOMINAL IN
LENGTH UNDER SHOULDER: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC
OPEN END INSIDE DIAMETER2.070 INCHES NOMINAL IN
CLOSED END OVERALL DIAMETER1.975 INCHES NOMINAL IN
LENGTH UNDER SHOULDER1.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
MILC52078Upgraded Successor
successor cross-reference
successor
RU51089Upgraded Successor
successor cross-reference
successor
28901-17Upgraded Successor
successor cross-reference
successor
21Upgraded Successor
successor cross-reference
successor
MIL-C-5501Upgraded Successor
successor cross-reference
successor
57AUpgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SIZE220?
SIZE220 is a CAP-PLUG,PROTECTIVE,DUST AND MOI.
What parts can replace SIZE220?
There are 24 known substitutes for SIZE220: MILC52078, RU51089, 28901-17 and 21 more. Substitute compatibility should be verified for your specific system.
Is SIZE220 still available?
SIZE220 is currently cancelled.
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