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A3-03 — INTERCONNECTING BOX

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

A3-03: INTERCONNECTING BOX.

The INTERCONNECTING BOX is a the manufacturer industrial component. Key specifications include relay: INCLUDED, material: PLASTIC FIRST POSITION SHIELD SOLID CORD, coil_type: NOT ISOLATED, unit_type: ELECTROMECHANICAL, ring_style: CONCENTRIC, overall_width: 5.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-104-5717, 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
MRO→ MRO_GENERAL→ A3-03
NSN: 5330-00-104-5717
NIINs: 001045717, 004098470, 004199222, 004228089, 006520836, 013428938, 016673158
FSC: 5330 — Packing and Gasket Materials
CAGE: 04162 — HI-RANGER MIDWEST (USA)
SPECIFICATIONS
relayINCLUDED
materialPLASTIC FIRST POSITION SHIELD SOLID CORD
coil_typeNOT ISOLATED
unit_typeELECTROMECHANICAL
ring_styleCONCENTRIC
overall_width5.250 INCHES NOMINAL IN
conductor_formSOLID ALL CONDUCTORS
float_quantity1
overall_height1.438 INCHES NOMINAL IN
overall_length0.300 MILLIMETERS MM
inside_diameter2.545 INCHES NOMINAL IN
mounting_methodFLANGE
NSN5330-00-104-5717
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A3-03 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
•
OUTER EDGE THICKNESS: 0.190 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: COUNTERBORED STRAIGHT FACE
•
OUTSIDE DIAMETER: 2.875 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.350 INCHES NOMINAL IN
•
INSIDE DIAMETER: 2.545 INCHES NOMINAL IN
•
RING STYLE: CONCENTRIC
•
MATERIAL: UNABLE TO DECODE
TECHNICAL CHARACTERISTICS
OUTER EDGE THICKNESS0.190 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLECOUNTERBORED STRAIGHT FACE
OUTSIDE DIAMETER2.875 INCHES NOMINAL IN
MATERIAL THICKNESS0.350 INCHES NOMINAL IN
INSIDE DIAMETER2.545 INCHES NOMINAL IN
RING STYLECONCENTRIC
MATERIALUNABLE TO DECODE
SUBSTITUTES & CROSS-REFERENCES 1
WMP2-25Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A3-03?
A3-03 is a INTERCONNECTING BOX. It is classified as a MRO (MRO_GENERAL).
What parts can replace A3-03?
There is 1 known substitute for A3-03: WMP2-25. Substitute compatibility should be verified for your specific system.
What is the NSN for A3-03?
A3-03 is cataloged in the U.S. Government catalog under NSN 5330-00-104-5717. This indicates validated use in U.S. government and defense supply chains.
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