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BT40 ✓ Verified by PartsTable
Yealink · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The Bluetooth USB dongle adds Bluetooth connectivity to your IP Phone with a wide variety of Bluetooth Headsets, allowing you to receive calls wherever you are in the office. Compatible with Bluetooth specification V4.0, back compatible with Bluetooth 1.1, 1.2, 2.0 and 3.0 for wide-rangging use.<br><br>- Bluetooth specification: V4.0+HS system.<br>- Enhanced Data Rata (edr) compliant for both 2Mbps and 3Mbps supported.<br>- A2DP technology.<br>- Wideband audio support.<br>- Operating distance: 10 meters.<br>- Answer incoming calls through Bluetooth headset.<br>- Terminate calls through Bluetooth headset.<br>- Adjusts the volume o f Bluetoot h headset through.<br>- Bluetoothh eadset or your phone.<br>- Multipoint technology for connecting with 4 Bluetooth devices at the same time.<br>- Bluetooth frequency range: 2.402GHz-2.480GHZ.<br>- Built-in security.<br>- Operation system: Windows 98SE, Windows 2000, Windows XP, Windows Vista etc.<br>- Low power consumption.<br><br><b>Physical Featu This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-115-1518, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
BT40
NSN: 4730-01-115-1518
FSC: 4730
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
mesh_size40.0
body_length7.875 INCHES NOMINAL IN
mounting_typeINLET CONNECTION AND OUTLET CONNECTION LINE
wire_diameter0.010 INCHES NOMINAL IN
style_designatorY STRAINER W/THREADED COVER
filtering_media_designMESH SINGLE FILTERING MEDIA RESPONSE
media_for_which_designedWATER
first_intake_connection_typeSOCKET WELDING LINE
first_intake_nominal_inside_diameter2.000 INCHES IN
distance_from_bottom_of_body_to_center_of_inlet5.688 INCHES NOMINAL IN
first_discharge_connection_relationship_to_intake_connectionIDENTICAL TO FIRST INTAKE CONNECTION
NSN4730-01-115-1518
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: BT40 · Yealink ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FIRST INTAKE CONNECTION TYPE: SOCKET WELDING LINE
•
STYLE DESIGNATOR: Y STRAINER W/THREADED COVER
•
FIRST INTAKE NOMINAL INSIDE DIAMETER: 2.000 INCHES IN
•
FIRST DISCHARGE CONNECTION RELATIONSHIP TO INTAKE CONNECTION: IDENTICAL TO FIRST INTAKE CONNECTION
•
MEDIA FOR WHICH DESIGNED: WATER
•
MATERIAL: STEEL CORROSION RESISTING SCREENING
•
BODY LENGTH: 7.875 INCHES NOMINAL IN
•
WIRE DIAMETER: 0.010 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FIRST INTAKE CONNECTION TYPESOCKET WELDING LINE
STYLE DESIGNATORY STRAINER W/THREADED COVER
FIRST INTAKE NOMINAL INSIDE DIAMETER2.000 INCHES IN
FIRST DISCHARGE CONNECTION RELATIONSHIP TO INTAKE CONNECTIONIDENTICAL TO FIRST INTAKE CONNECTION
MEDIA FOR WHICH DESIGNEDWATER
MATERIALSTEEL CORROSION RESISTING SCREENING
BODY LENGTH7.875 INCHES NOMINAL IN
WIRE DIAMETER0.010 INCHES NOMINAL IN
MESH SIZE40.0
MOUNTING TYPEINLET CONNECTION AND OUTLET CONNECTION LINE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
B7DEInterchangeable
interchangeable cross-reference
interchangeable
1101 + 5101 + 5508Interchangeable
interchangeable cross-reference
interchangeable
22-18Interchangeable
interchangeable cross-reference
interchangeable
591Interchangeable
interchangeable cross-reference
interchangeable
3018684Interchangeable
interchangeable cross-reference
interchangeable
PA6080Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BT40?
BT40 is a HEATING ELEMENT,ELECTRICAL,NONIM manufactured by Yealink.
What parts can replace BT40?
There are 25 known substitutes for BT40: B7DE, 1101 + 5101 + 5508, 22-18 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BT40?
BT40 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-115-1518. 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: July 2026