PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 63556R1
63556R1 ✓ 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: 3.188 INCHES NOMINAL IN, material: STEEL, outside_diameter: 1.995 INCHES MINIMUM AND 2.005 INCHES MAXIMUM IN, style_designator: CONCAVE, material_thickness: 0.083 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-054-1414, 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
63556R1
NSN: 5340-00-054-1414
FSC: 5340
CAGE: 31007 — NAVISTAR INTERNATIONAL CORPORATION DBA NAVISTAR (USA)
SPECIFICATIONS
radius3.188 INCHES NOMINAL IN
materialSTEEL
outside_diameter1.995 INCHES MINIMUM AND 2.005 INCHES MAXIMUM IN
style_designatorCONCAVE
material_thickness0.083 INCHES NOMINAL IN
NSN5340-00-054-1414
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 63556R1 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: 1.995 INCHES MINIMUM AND 2.005 INCHES MAXIMUM IN
•
RADIUS: 3.188 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.083 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
STYLE DESIGNATOR: CONCAVE
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER1.995 INCHES MINIMUM AND 2.005 INCHES MAXIMUM IN
RADIUS3.188 INCHES NOMINAL IN
MATERIAL THICKNESS0.083 INCHES NOMINAL IN
MATERIALSTEEL
STYLE DESIGNATORCONCAVE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 36
3337Upgraded Successor
successor cross-reference
successor
1A3337Upgraded Successor
successor cross-reference
successor
M1841AUpgraded Successor
successor cross-reference
successor
110624Interchangeable
interchangeable cross-reference
interchangeable
51727Interchangeable
interchangeable cross-reference
interchangeable
FFS92TYPE1STYLE6SInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy 63556R1?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 63556R1?
63556R1 is a PLUG,EXPANSION.
What parts can replace 63556R1?
There are 36 known substitutes for 63556R1: 3337, 1A3337, M1841A and 33 more. Substitute compatibility should be verified for your specific system.
Is 63556R1 still available?
63556R1 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 63556R1

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026