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Technical Data Sheet
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65643 ✓ 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 TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include material: STEEL SINGLE END, design_form: PREBENT, thread_class: 2B SINGLE END, wall_thickness: 0.083 INCHES NOMINAL IN, thread_direction: RIGHT-HAND SINGLE END, mating_end_quantity: 2 SINGLE END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-248-1007, 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
65643
NSN: 5330-00-248-1007
FSC: 5330
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialSTEEL SINGLE END
design_formPREBENT
thread_class2B SINGLE END
wall_thickness0.083 INCHES NOMINAL IN
thread_directionRIGHT-HAND SINGLE END
mating_end_quantity2 SINGLE END
nominal_thread_size0.875 INCHES SINGLE END IN
end_connection_styleSWIVEL NUT, COMPRESSION SINGLE END
tube_outside_diameter0.625 INCHES NOMINAL IN
end_connection_spec/stdWEATHERHEAD PART NO. 7105X10 AND PART NO. 7165X10
thread_series_designatorUN-16 SINGLE END
material_document_and_classificationAISI 304 ASSN STD SINGLE MATERIAL RESPONSE TUBING
NSN5330-00-248-1007
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 65643 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
•
BOLT HOLE QUANTITY: 4
•
MATERIAL: CELLULOSE OVERALL
•
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
HOLE DIAMETER: 0.531 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: 3.875 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH: 0.563 INCHES NOMINAL IN
•
APERTURE DIAMETER: 4.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BOLT HOLE QUANTITY4
MATERIALCELLULOSE OVERALL
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
HOLE DIAMETER0.531 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH3.875 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH0.563 INCHES NOMINAL IN
APERTURE DIAMETER4.000 INCHES NOMINAL IN
OVERALL WIDTH5.000 INCHES NOMINAL IN
OVERALL LENGTH5.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
61-21-2Interchangeable
interchangeable cross-reference
interchangeable
3022949-016-101Interchangeable
interchangeable cross-reference
interchangeable
817-1017Interchangeable
interchangeable cross-reference
interchangeable
154029P12Interchangeable
interchangeable cross-reference
interchangeable
65643Interchangeable
interchangeable cross-reference
interchangeable
A4012Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 65643?
65643 is a TUBE ASSEMBLY,METAL.
What parts can replace 65643?
There are 10 known substitutes for 65643: 61-21-2, 3022949-016-101, 817-1017 and 7 more. Substitute compatibility should be verified for your specific system.
Is 65643 still available?
65643 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