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Technical Data Sheet
PartsTable / COMPONENT / 55-22318-54
55-22318-54 ✓ 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 RETAINER,PACKING is a the manufacturer industrial component. Key specifications include attachment_method: ROUND HOLE, center_hole_diameter: 1.875 INCHES NOMINAL IN, cross-sectional_height: 1.000 INCHES NOMINAL IN, attachment_hole_diameter: 0.562 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-174-0582, 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
55-22318-54
NSN: 5330-01-174-0582
FSC: 5330
CAGE: 52081 — EURAMCO SAFETY INC (USA)
SPECIFICATIONS
attachment_methodROUND HOLE
center_hole_diameter1.875 INCHES NOMINAL IN
cross-sectional_height1.000 INCHES NOMINAL IN
attachment_hole_diameter0.562 INCHES NOMINAL IN
attachment_feature_quantity2
NSN5330-01-174-0582
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 55-22318-54 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
•
ATTACHMENT METHOD: ROUND HOLE
•
CROSS-SECTIONAL HEIGHT: 1.000 INCHES NOMINAL IN
•
ATTACHMENT HOLE DIAMETER: 0.562 INCHES NOMINAL IN
•
ATTACHMENT FEATURE QUANTITY: 2
•
CENTER HOLE DIAMETER: 1.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
ATTACHMENT METHODROUND HOLE
CROSS-SECTIONAL HEIGHT1.000 INCHES NOMINAL IN
ATTACHMENT HOLE DIAMETER0.562 INCHES NOMINAL IN
ATTACHMENT FEATURE QUANTITY2
CENTER HOLE DIAMETER1.875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
321574R91Interchangeable
interchangeable cross-reference
interchangeable
13217E0544-2Interchangeable
interchangeable cross-reference
interchangeable
538800-2Interchangeable
interchangeable cross-reference
interchangeable
1100-7Interchangeable
interchangeable cross-reference
interchangeable
14082Interchangeable
interchangeable cross-reference
interchangeable
08375Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55-22318-54?
55-22318-54 is a RETAINER,PACKING.
What parts can replace 55-22318-54?
There are 17 known substitutes for 55-22318-54: 321574R91, 13217E0544-2, 538800-2 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 55-22318-54?
55-22318-54 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-174-0582. 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