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Technical Data Sheet
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13-521 — Technical Data Sheet

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Trust · 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

Router and switch for simultaneous sharing of 1 Internet subscription between 2 or more users. <br> <br> Complete system including modem and switch for direct connection to the Internet. Inbuilt Firewall to keep your private details secure.

Internet via ADSL/DSL: high speed, continuously online, low fixed rates, simultaneous telephone and Internet use. Suitable for use in combination with all normal telephone connections.<br> This part is cataloged in the Federal Logistics Information System under NSN 4710-00-037-7853, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
13-521
NSN: 4710-00-037-7853
FSC: 4710
CAGE: 11599 — TRIUMPH ENGINE CONTROL SYSTEMS LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING TUBING
base_styleWEDGE
bulb_styleT (TUBULAR)
design_formPREBENT
thread_class3A SINGLE END A
overall_length0.750 INCHES NOMINAL IN
shell_materialCOPPER ALLOY
voltage_rating24.000 VOLTS NOMINAL
wall_thickness0.030 INCHES NOMINAL IN
bulb_designatorT-1 1/2
insert_materialPLASTIC SINGLE MATING END
overall_diameter0.313 INCHES NOMINAL IN
NSN4710-00-037-7853
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 13-521 · Trust ⚠ 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 SINGLE END IN
•
DESIGN FORM: PREBENT
•
MATERIAL: STEEL CORROSION RESISTING SINGLE END
•
MATING END QUANTITY: 2 SINGLE END
•
TUBE OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
END CONNECTION STYLE: SWIVEL NUT, FLARE SINGLE END
TECHNICAL CHARACTERISTICS
NOMINAL THREAD SIZE0.438 INCHES SINGLE END IN
DESIGN FORMPREBENT
MATERIALSTEEL CORROSION RESISTING SINGLE END
OVERALL LENGTH5.030 INCHES NOMINAL IN
MATING END QUANTITY2 SINGLE END
TUBE OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING TUBING
END CONNECTION STYLESWIVEL NUT, FLARE SINGLE END
THREAD SERIES DESIGNATORUNF SINGLE END
THREAD CLASS3A SINGLE END A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
2341InterchangeableGOVERNMENT REGISTRY
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24-301InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
659-2341InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
20J106-5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
JC-300-BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
L13521InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 13-521?
13-521 is a CONNECTOR,PLUG,ELECTRICAL manufactured by Trust.
What parts can replace 13-521?
There are 12 known substitutes for 13-521: 2341, 24-301, 659-2341 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 13-521?
13-521 is cataloged in the Federal Logistics Information System under NSN 4710-00-037-7853. 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: September 2026