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Technical Data Sheet
PartsTable / COMPONENT / 63840
63840 ✓ 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 COUPLER,DRAWBAR,BALL SOCKET is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: HITCH,2 5/16",BALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-172-9871, 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
63840
NSN: 5330-00-172-9871
FSC: 5330
CAGE: 22593 — FITZGERALD GASKET A CO OF TANNETICS INC (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyHITCH,2 5/16",BALL
NSN5330-00-172-9871
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 63840 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 14
1EN1-SInterchangeable
interchangeable cross-reference
interchangeable
633298-01Interchangeable
interchangeable cross-reference
interchangeable
24579Interchangeable
interchangeable cross-reference
interchangeable
45515Interchangeable
interchangeable cross-reference
interchangeable
53440Interchangeable
interchangeable cross-reference
interchangeable
321-1012Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 63840?
63840 is a COUPLER,DRAWBAR,BALL SOCKET.
What parts can replace 63840?
There are 14 known substitutes for 63840: 1EN1-S, 633298-01, 24579 and 11 more. Substitute compatibility should be verified for your specific system.
Is 63840 still available?
63840 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