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Technical Data Sheet
5021-1 ITEM 43 ✓ Verified by PartsTable
· 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 ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 2B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, connection_style: GASKET SEAL COMPRESSION (PIPE) SECOND END, nominal_thread_size: 0.562 INCHES FIRST END IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-361-8156, 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
5021-1 ITEM 43
NSN: 4730-01-361-8156
FSC: 4730
CAGE: 88733 — CRANE MIDWEST
SPECIFICATIONS
materialSTEEL OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class2B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleGASKET SEAL COMPRESSION (PIPE) SECOND END
nominal_thread_size0.562 INCHES FIRST END IN
nominal_overall_length37.2 MILLIMETERS MM
thread_series_designatorBSP.C SECOND END
furnished_items_and_quantity1 PREFORMED PACKING
nominal_outside_diameter_tube_accommodated0.375 INCHES FIRST END IN
NSN4730-01-361-8156
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5021-1 ITEM 43 · 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
SEAT ANGLE: 37.0 DEGREES FIRST END
CONNECTION TYPE: THREADED INTERNAL TUBE FIRST END
CONNECTION STYLE: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
MATERIAL: STEEL OVERALL
THREAD SERIES DESIGNATOR: BSP.C SECOND END
FURNISHED ITEMS AND QUANTITY: 1 PREFORMED PACKING
TECHNICAL CHARACTERISTICS (FLIS)
SEAT ANGLE37.0 DEGREES FIRST END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
CONNECTION STYLESWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORBSP.C SECOND END
FURNISHED ITEMS AND QUANTITY1 PREFORMED PACKING
CONNECTION STYLEGASKET SEAL COMPRESSION (PIPE) SECOND END
THREAD SERIES DESIGNATORUNF FIRST END
THREAD CLASS2B FIRST END
NOMINAL THREAD SIZE0.250 INCHES SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
B54747Interchangeable
interchangeable cross-reference
interchangeable
OSM502-1Interchangeable
interchangeable cross-reference
interchangeable
502-1Interchangeable
interchangeable cross-reference
interchangeable
12Z11100-725Interchangeable
interchangeable cross-reference
interchangeable
B107.13M TY1CL3STBInterchangeable
interchangeable cross-reference
interchangeable
P209Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5021-1 ITEM 43?
5021-1 ITEM 43 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 5021-1 ITEM 43?
There are 20 known substitutes for 5021-1 ITEM 43: B54747, OSM502-1, 502-1 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5021-1 ITEM 43?
5021-1 ITEM 43 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-361-8156. This indicates validated use in U.S. government and defense supply chains.
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