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BT20 — STRAINER,SEDIMENT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

BT20: STRAINER,SEDIMENT.

The STRAINER,SEDIMENT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING SCREENING, mesh_size: 20.0, body_length: 6.375 INCHES NOMINAL IN, mounting_type: INLET CONNECTION AND OUTLET CONNECTION LINE, wire_diameter: 0.014 INCHES NOMINAL IN, style_designator: Y STRAINER W/THREADED COVER. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-115-1517, 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
BT20
NSN: 4730-01-115-1517
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING SCREENING
mesh_size20.0
body_length6.375 INCHES NOMINAL IN
mounting_typeINLET CONNECTION AND OUTLET CONNECTION LINE
wire_diameter0.014 INCHES NOMINAL IN
style_designatorY STRAINER W/THREADED COVER
filtering_media_designMESH SINGLE FILTERING MEDIA RESPONSE
media_for_which_designedANY ACCEPTABLE
first_intake_connection_typeINTERNAL SOLDER 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
NSN4730-01-115-1517
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: BT20 · OEM ⚠ 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
•
FILTERING MEDIA DESIGN: MESH SINGLE FILTERING MEDIA RESPONSE
•
DISTANCE FROM BOTTOM OF BODY TO CENTER OF INLET: 5.688 INCHES NOMINAL IN
•
MESH SIZE: 20.0
•
FIRST INTAKE CONNECTION TYPE: INTERNAL SOLDER LINE
•
STYLE DESIGNATOR: Y STRAINER W/THREADED COVER
•
BODY LENGTH: 6.375 INCHES NOMINAL IN
•
FIRST INTAKE NOMINAL INSIDE DIAMETER: 2.000 INCHES IN
•
FIRST DISCHARGE CONNECTION RELATIONSHIP TO INTAKE CONNECTION: IDENTICAL TO FIRST INTAKE CONNECTION
TECHNICAL CHARACTERISTICS
FILTERING MEDIA DESIGNMESH SINGLE FILTERING MEDIA RESPONSE
DISTANCE FROM BOTTOM OF BODY TO CENTER OF INLET5.688 INCHES NOMINAL IN
MESH SIZE20.0
FIRST INTAKE CONNECTION TYPEINTERNAL SOLDER LINE
STYLE DESIGNATORY STRAINER W/THREADED COVER
BODY LENGTH6.375 INCHES NOMINAL IN
FIRST INTAKE NOMINAL INSIDE DIAMETER2.000 INCHES IN
FIRST DISCHARGE CONNECTION RELATIONSHIP TO INTAKE CONNECTIONIDENTICAL TO FIRST INTAKE CONNECTION
MEDIA FOR WHICH DESIGNEDANY ACCEPTABLE
MATERIALCOPPER ALLOY BODY
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 2
TYPEBT20MESHReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
31B4-106Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 BT20?
BT20 is a STRAINER,SEDIMENT.
What parts can replace BT20?
There are 2 known substitutes for BT20: TYPEBT20MESH, 31B4-106. Substitute compatibility should be verified for your specific system.
What is the NSN for BT20?
BT20 is cataloged in the U.S. Government catalog under NSN 4730-01-115-1517. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.