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66689C-RH — BEND,PIPE,RETURN

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

66689C-RH: BEND,PIPE,RETURN.

The BEND,PIPE,RETURN is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, leg_length: 4.630 INCHES NOMINAL FIRST END IN, connection_type: UNTHREADED INTERNAL PIPE SECOND END, connection_style: SOCKET (PIPE) SECOND END, nominal_thread_size: 0.300 INCHES FIRST END IN, thread_series_designator: NPT FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-102-5805, 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
66689C-RH
NSN: 4730-01-102-5805
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 45152 — OSHKOSH CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
leg_length4.630 INCHES NOMINAL FIRST END IN
connection_typeUNTHREADED INTERNAL PIPE SECOND END
connection_styleSOCKET (PIPE) SECOND END
nominal_thread_size0.300 INCHES FIRST END IN
thread_series_designatorNPT FIRST END
nominal_pipe_size_accommodated2.750 INCHES SECOND END IN
bend_center_to_center_nominal_distance0.180 INCHES IN
NSN4730-01-102-5805
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 66689C-RH · 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 PIPE SIZE ACCOMMODATED: 2.750 INCHES SECOND END IN
•
CONNECTION STYLE: SOCKET (PIPE) SECOND END
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE SECOND END
•
LEG LENGTH: 5.000 INCHES NOMINAL SECOND END IN
•
NOMINAL THREAD SIZE: 0.300 INCHES FIRST END IN
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: NPT FIRST END
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED2.750 INCHES SECOND END IN
CONNECTION STYLESOCKET (PIPE) SECOND END
CONNECTION TYPEUNTHREADED INTERNAL PIPE SECOND END
LEG LENGTH5.000 INCHES NOMINAL SECOND END IN
LEG LENGTH4.630 INCHES NOMINAL FIRST END IN
NOMINAL THREAD SIZE0.300 INCHES FIRST END IN
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORNPT FIRST END
BEND CENTER TO CENTER NOMINAL DISTANCE0.180 INCHES IN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 2
66689CXReference document
Same NSN cross-reference
Reference document — Secondary reference
66689CReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 66689C-RH?
66689C-RH is a BEND,PIPE,RETURN.
What parts can replace 66689C-RH?
There are 2 known substitutes for 66689C-RH: 66689CX, 66689C. Substitute compatibility should be verified for your specific system.
What is the NSN for 66689C-RH?
66689C-RH is cataloged in the U.S. Government catalog under NSN 4730-01-102-5805. This indicates validated use in U.S. government and defense supply chains.
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