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1898E681 — SWITCH,CODE INDICATING WHEEL

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1898E681: SWITCH,CODE INDICATING WHEEL.

The SWITCH,CODE INDICATING WHEEL is a the manufacturer industrial component. Key specifications include material: COPPER OVERALL, flow_angle: 90.0 DEGREES, leg_length: 0.250 INCHES NOMINAL FIRST END IN, seat_angle: 37.0 DEGREES FIRST END, thread_class: 2B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-247-3222, 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
1898E681
NSN: 4730-00-247-3222
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 97286 — ROCKWELL INTERNATIONAL CORP INDUSTRIAL PRODUCTS GROUP (USA)
SPECIFICATIONS
materialCOPPER OVERALL
flow_angle90.0 DEGREES
leg_length0.250 INCHES NOMINAL FIRST END IN
seat_angle37.0 DEGREES FIRST END
thread_class2B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_stylePLAIN (PIPE) SECOND END
nominal_thread_size0.375 INCHES FIRST END IN
thread_series_designatorNPT SECOND END
nominal_outside_diameter_tube_accommodated0.188 INCHES FIRST END IN
NSN4730-00-247-3222
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1898E681 · 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
•
FLOW ANGLE: 90.0 DEGREES
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.188 INCHES FIRST END IN
•
LEG LENGTH: 0.562 INCHES NOMINAL SECOND END IN
TECHNICAL CHARACTERISTICS
FLOW ANGLE90.0 DEGREES
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.188 INCHES FIRST END IN
LEG LENGTH0.562 INCHES NOMINAL SECOND END IN
LEG LENGTH0.250 INCHES NOMINAL FIRST END IN
NOMINAL THREAD SIZE0.125 INCHES SECOND END IN
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
SUBSTITUTES & CROSS-REFERENCES 1
28911Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1898E681?
1898E681 is a SWITCH,CODE INDICATING WHEEL.
What parts can replace 1898E681?
There is 1 known substitute for 1898E681: 28911. Substitute compatibility should be verified for your specific system.
What is the NSN for 1898E681?
1898E681 is cataloged in the U.S. Government catalog under NSN 4730-00-247-3222. This indicates validated use in U.S. government and defense supply chains.
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