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Technical Data Sheet
PartsTable / COMPONENT / 125789
125789 ✓ Verified by PartsTable
Hama · 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

- Exclusive wooden frame in a modern design<br>- Incl. premium glass, antireflex coating on one side<br>- Float glass quality, ground and washed<br>- Precision mitre. Key specifications include material: STEEL, construction: ONE-PIECE, outside_diameter: 0.375 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 0.156 INCHES NOMINAL IN, surface_treatment: NICKEL.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-4753, 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
125789
NSN: 4730-00-278-4753
FSC: 4730
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialSTEEL
constructionONE-PIECE
outside_diameter0.375 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter0.156 INCHES NOMINAL IN
surface_treatmentNICKEL
NSN4730-00-278-4753
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 125789 · Hama ⚠ 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
•
SURFACE TREATMENT: CADMIUM OVERALL
•
THREAD SERIES DESIGNATOR: NPTF SECOND END
•
CONNECTION STYLE: FLARELESS (TUBE) FIRST END
•
LEG LENGTH: 1.125 INCHES NOMINAL FIRST END IN
•
MATERIAL: STEEL OR STEEL COMP 1212 OR STEEL COMP 1117 OVERALL
•
SEAT ANGLE: 12.0 DEGREES FIRST END
•
NOMINAL THREAD SIZE: 0.375 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM OVERALL
THREAD SERIES DESIGNATORNPTF SECOND END
CONNECTION STYLEFLARELESS (TUBE) FIRST END
LEG LENGTH1.125 INCHES NOMINAL FIRST END IN
MATERIALSTEEL OR STEEL COMP 1212 OR STEEL COMP 1117 OVERALL
SEAT ANGLE12.0 DEGREES FIRST END
NOMINAL THREAD SIZE0.375 INCHES SECOND END IN
CONNECTION STYLEPLAIN (PIPE) SECOND END
FLOW ANGLE90.0 DEGREES
LEG LENGTH1.188 INCHES NOMINAL SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
125789Interchangeable
interchangeable cross-reference
interchangeable
423191Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 125789?
125789 is a ELBOW,PIPE TO TUBE manufactured by Hama.
What parts can replace 125789?
There are 2 known substitutes for 125789: 125789, 423191. Substitute compatibility should be verified for your specific system.
Is 125789 still available?
125789 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026