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Technical Data Sheet
PartsTable / COMPONENT / W15-C
W15-C ✓ Verified by PartsTable
— · 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

TERMINAL JUNCTION BLOCK,SECTIONA. Key specifications include shape: RECTANGULAR, material: STEEL BODY, overall_width: 1.250 INCHES NOMINAL IN, overall_height: 1.940 INCHES NOMINAL IN, overall_length: 20.000 INCHES NOMINAL IN, surface_treatment: ENAMEL BODY. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-278-1103, 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
W15-C
NSN: 4720-00-278-1103
FSC: 4720
CAGE: Z0543 — DEPT OF DEFENCE (AIR OFFICE) RAAF ENGINEERING SPECIFICATIONS AND STANDARDSINCORPORATING RAAF TECHNICAL REQUIREM ENT SPEC DBA IFICATIONS (AUS)
SPECIFICATIONS
shapeRECTANGULAR
materialSTEEL BODY
overall_width1.250 INCHES NOMINAL IN
overall_height1.940 INCHES NOMINAL IN
overall_length20.000 INCHES NOMINAL IN
surface_treatmentENAMEL BODY
voltage_rating_in_volts125.0 AC NOMINAL
wiring_provision_methodINDIVIDUAL WIRE
terminal_type_and_quantity2 WIRE LEAD
lamp_base_type_accommodatedMEDIUM BIPIN
illumination_directing_device_typeOMNIDIRECTIONAL
lamp_type_accommodated_and_quantity1 FLUORESCENT
NSN4720-00-278-1103
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: W15-C · OEM ⚠ 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
QQ-A-200/8Interchangeable
interchangeable cross-reference
interchangeable
472Interchangeable
interchangeable cross-reference
interchangeable
BAC1503-1470Interchangeable
interchangeable cross-reference
interchangeable
60-18Interchangeable
interchangeable cross-reference
interchangeable
ASTM B221Interchangeable
interchangeable cross-reference
interchangeable
QQA200-9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W15-C?
W15-C is a TERMINAL JUNCTION BLOCK,SECTIONA.
What parts can replace W15-C?
There are 31 known substitutes for W15-C: QQ-A-200/8, 472, BAC1503-1470 and 28 more. Substitute compatibility should be verified for your specific system.
Is W15-C still available?
W15-C 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