PartsTable
Technical Data Sheet
ASTM-B43 ✓ 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 TUBE,METALLIC is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, construction: SEAMLESS, heat_treatment: ANNEALED TO A NOMINAL GRAIN SIZE 0.050, first_end_style: THREADED EXTERNAL, first_end_thread_series: NPT, wall_thickness_designation: STANDARD. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-196-1972, 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
ASTM-B43
NSN: 4730-00-196-1972
FSC: 4730
CAGE: 81346 — AMERICAN SOCIETY FOR TESTING AND MATERIALS DBA ASTM INTERNATIONAL (USA)
SPECIFICATIONS
materialCOPPER ALLOY
constructionSEAMLESS
heat_treatmentANNEALED TO A NOMINAL GRAIN SIZE 0.050
first_end_styleTHREADED EXTERNAL
first_end_thread_seriesNPT
wall_thickness_designationSTANDARD
measuring_method_and_length16.000 INCHES NOMINAL SPECIFIC IN
nondefinitive_spec/std_data1 CLASS
departure_from_cited_documentAS MODIFIED BY LG; BY THD END
first_end_nominal_thread_size1.000 INCHES IN
nominal_pipe_size_designation1.000 INCHES IN
second_end_relationship_with_first_endIDENTICAL
NSN4730-00-196-1972
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ASTM-B43 · 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
MATERIAL: COPPER OR COPPER ALLOY 230 OVERALL
NOMINAL THREAD SIZE: 0.250 INCHES ALL ENDS IN
OPERATING PRESSURE: 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
SPECIFICATION/STANDARD DATA: 81346-ASTM B687 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51846 GOVERNMENT STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESREFERENCE ONLY: P/N & CAGE 9-1-0517,81337 ARMY // END ITEM: FORCE PROVIDER
MATERIALCOPPER OR COPPER ALLOY 230 OVERALL
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
OPERATING PRESSURE2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
SPECIFICATION/STANDARD DATA81346-ASTM B687 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51846 GOVERNMENT STANDARD
MATERIALCOPPER OR COPPER ALLOY 230 OVERALL
NOMINAL OVERALL LENGTH2.000 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
WW-N-351Interchangeable
interchangeable cross-reference
interchangeable
MS51846-193Interchangeable
interchangeable cross-reference
interchangeable
B687R-193BInterchangeable
interchangeable cross-reference
interchangeable
113RB-A3Interchangeable
interchangeable cross-reference
interchangeable
113B1-8X3Interchangeable
interchangeable cross-reference
interchangeable
ASTM B687Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ASTM-B43?
ASTM-B43 is a TUBE,METALLIC.
What parts can replace ASTM-B43?
There are 29 known substitutes for ASTM-B43: WW-N-351, MS51846-193, B687R-193B and 26 more. Substitute compatibility should be verified for your specific system.
Is ASTM-B43 still available?
ASTM-B43 is currently cancelled.
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