PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

17780Reducer,tube

Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling · NSN 4730-01-386-8289 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-386-8289 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-386-8289. Primary manufacturer part number: 17780.
Features
  • Reducer,tube — FSC 4730
  • Connection Style: FLARED (TUBE) FIRST END
  • Seat Angle: 37.0 DEGREES ALL ENDS
  • Connection Type: THREADED EXTERNAL TUBE SECOND END
  • Nominal Thread Size: 0.563 INCHES SECOND END IN
  • Thread Series Designator: UNF ALL ENDS
  • Nominal Outside Diameter Tube Accommodated: 0.750 INCHES FIRST END IN
  • Material: STEEL OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Reducer,tube, cataloged under National Stock Number 4730-01-386-8289, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-386-8289
Primary Part Number17780
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
StatusACTIVE
Connection StyleFLARED (TUBE) FIRST END
Seat Angle37.0 DEGREES ALL ENDS
Connection TypeTHREADED EXTERNAL TUBE SECOND END
Nominal Thread Size0.563 INCHES SECOND END IN
Thread Series DesignatorUNF ALL ENDS
Nominal Outside Diameter Tube Accommodated0.750 INCHES FIRST END IN
MaterialSTEEL OVERALL
Thread Class2B FIRST END
Reducer TypeCONCENTRIC
Thread Class2A SECOND END A
Nominal Overall Length1.090 INCHES IN
Connection StyleFLARED (TUBE) SECOND END
Nominal Thread Size1.188 INCHES FIRST END IN
Nominal Outside Diameter Tube Accommodated0.375 INCHES SECOND END IN
Connection TypeTHREADED INTERNAL TUBE FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
1630-00-691-283717780 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Moog Inc
5330-01-393-086717780 INTERCHANGEABLE
Retainer,packing
Marco Seattle Inc Dba Marco
5905-01-396-93140177800003 INTERCHANGEABLE
Resistor,fixed,film
Riimic, Llc Dba Sunair Electronics
4730-01-413-8280S07984-001 INTERCHANGEABLE
Plug,pipe
B.w. Elliott Manufacturing Co., Llc
3020-01-414-925823415-1 INTERCHANGEABLE
Gear,bevel
B.w. Elliott Manufacturing Co., Llc
3010-01-414-9326S17780-505 INTERCHANGEABLE
Universal Joint,geared,nonvehicu
B.w. Elliott Manufacturing Co., Llc
3020-01-415-2585S23416-001 INTERCHANGEABLE
Gear,bevel
B.w. Elliott Manufacturing Co., Llc
3010-01-415-4368S17780-508 INTERCHANGEABLE
Universal Joint,geared,nonvehicu
B.w. Elliott Manufacturing Co., Llc
Cross-Reference Index
Part NumberManufacturer
17780 PRIMARY Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA)
17780 Hyster-Yale Group, Inc. (USA)
Related Parts
1630-00-691-2837INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
17780
5330-01-393-0867INTERCHANGEABLE
RETAINER,PACKING
17780
5905-01-396-9314INTERCHANGEABLE
RESISTOR,FIXED,FILM
0177800003
4730-01-413-8280INTERCHANGEABLE
PLUG,PIPE
S07984-001
3020-01-414-9258INTERCHANGEABLE
GEAR,BEVEL
23415-1
3010-01-414-9326INTERCHANGEABLE
UNIVERSAL JOINT,GEARED,NONVEHICU
S17780-505
3020-01-415-2585INTERCHANGEABLE
GEAR,BEVEL
S23416-001
3010-01-415-4368INTERCHANGEABLE
UNIVERSAL JOINT,GEARED,NONVEHICU
S17780-508

Frequently Asked Questions

What is NSN 4730-01-386-8289?

NSN 4730-01-386-8289 is a Reducer,tube, manufactured by Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-386-8289?

NSN 4730-01-386-8289 has 2 cross-referenced part numbers: 17780 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling), 17780 (Hyster-Yale Group, Inc.).

What NSN replaces 4730-01-386-8289?

There are 8 known substitutes for 4730-01-386-8289: 1630-00-691-2837, 5330-01-393-0867, 5905-01-396-9314 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 17780?

Key specifications for 17780: Connection Style: FLARED (TUBE) FIRST END; Seat Angle: 37.0 DEGREES ALL ENDS; Connection Type: THREADED EXTERNAL TUBE SECOND END; Nominal Thread Size: 0.563 INCHES SECOND END IN. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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