PartsTable
Technical Data Sheet
156-28 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
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

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include material: COPPER ALLOY OVERALL, sterility: STERILE, seat_angle: 45.0 DEGREES FIRST END, thread_class: 2B FIRST END, thread_series: UNF, connection_type: THREADED EXTERNAL PIPE SECOND END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-358-4275, 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 156-28
NSN: 4730-00-358-4275
FSC: 4730
CAGE: 71500 — ACF INDUSTRIES INC CARTER CARBURETOR DIV
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
sterilitySTERILE
seat_angle45.0 DEGREES FIRST END
thread_class2B FIRST END
thread_seriesUNF
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) SECOND END
component_quantity1
nominal_thread_size0.190 INCHES IN
fsc_application_dataPOWER TURBINE MODULE T700-GE-401 ENGINE
unit_package_quantity10
nominal_overall_length1.062 INCHES IN
NSN4730-00-358-4275
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 156-28 · 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
NOMINAL OVERALL LENGTH: 1.062 INCHES IN
MATERIAL: COPPER ALLOY OVERALL
THREAD SERIES DESIGNATOR: UNF FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.297 INCHES FIRST END IN
NOMINAL THREAD SIZE: 0.500 INCHES FIRST END IN
SEAT ANGLE: 45.0 DEGREES FIRST END
CONNECTION STYLE: FLARED (TUBE) FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OVERALL LENGTH1.062 INCHES IN
MATERIALCOPPER ALLOY OVERALL
THREAD SERIES DESIGNATORUNF FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.297 INCHES FIRST END IN
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
NOMINAL THREAD SIZE0.125 INCHES SECOND END IN
SEAT ANGLE45.0 DEGREES FIRST END
CONNECTION STYLEFLARED (TUBE) FIRST END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
THREAD SERIES DESIGNATORNPT SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
1513Interchangeable
interchangeable cross-reference
interchangeable
A8830Interchangeable
interchangeable cross-reference
interchangeable
134D589Interchangeable
interchangeable cross-reference
interchangeable
2913Interchangeable
interchangeable cross-reference
interchangeable
2913JInterchangeable
interchangeable cross-reference
interchangeable
72-6970-924Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 156-28?
156-28 is a RESISTOR,FIXED,WIRE WOUND,INDUCT. It is classified as a MRO (MRO_GENERAL).
What parts can replace 156-28?
There are 24 known substitutes for 156-28: 1513, A8830, 134D589 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 156-28?
156-28 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-358-4275. This indicates validated use in U.S. government and defense supply chains.
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