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Technical Data Sheet
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4960 — Technical Data Sheet

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Zyxel · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include material: IRON MALLEABLE BODY, leg_length: 1.750 INCHES NOMINAL FIRST END IN, connection_type: THREADED EXTERNAL TUBE SECOND END, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END. This part is cataloged in the Federal Logistics Information System under NSN 4720-00-580-7470, 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
4960
NSN: 4720-00-580-7470
FSC: 4720
CAGE: 19239 — ECHLIN INC (USA)
SPECIFICATIONS
materialIRON MALLEABLE BODY
leg_length1.750 INCHES NOMINAL FIRST END IN
connection_typeTHREADED EXTERNAL TUBE SECOND END
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
NSN4720-00-580-7470
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 4960 · Zyxel ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
NOMINAL THREAD SIZE: 0.438 INCHES FIRST END IN
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
EXTERIOR COLOR: BLACK
•
THREAD SERIES DESIGNATOR: UNS AND UNF SECOND END
•
BURST TEST PRESSURE: 5000.0 POUNDS PER SQUARE INCH LBS
•
INSIDE DIAMETER: 0.125 INCHES NOMINAL IN
•
END CONNECTION DESIGN: STRAIGHT FIRST END
TECHNICAL CHARACTERISTICS
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
THREAD DIRECTIONRIGHT-HAND FIRST END
EXTERIOR COLORBLACK
THREAD SERIES DESIGNATORUNS AND UNF SECOND END
BURST TEST PRESSURE5000.0 POUNDS PER SQUARE INCH LBS
INSIDE DIAMETER0.125 INCHES NOMINAL IN
END CONNECTION DESIGNSTRAIGHT FIRST END
THREAD SERIES DESIGNATORUNF FIRST END
CONNECTION TYPEINTERNALLY AND EXTERNALLY THREADED TUBE SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
F4960InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
8344InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
PRP902-53-718-40InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
HA8861-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3.5194-0460.3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
FC4000InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4960?
4960 is a RESISTOR,VARIABLE,WIRE WOUND,NON manufactured by Zyxel.
What parts can replace 4960?
There are 27 known substitutes for 4960: F4960, 8344, PRP902-53-718-40 and 24 more. Substitute compatibility should be verified for your specific system.
Is 4960 still available?
4960 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: September 2026