PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

17689Reducer,pipe

Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling · NSN 4730-01-263-6424 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-263-6424 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-263-6424. Primary manufacturer part number: 17689.
Features
  • Reducer,pipe — FSC 4730
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Nominal Thread Size: 0.250 INCHES SECOND END IN
  • Connection Type: THREADED EXTERNAL PIPE ALL ENDS
  • Material: STEEL OVERALL
  • Thread Series Designator: NPT ALL ENDS
  • Nominal Overall Length: 1.700 INCHES IN
  • Reducer Type: CONCENTRIC
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Reducer,pipe, cataloged under National Stock Number 4730-01-263-6424, 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 8 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-263-6424
Primary Part Number17689
Item NameReducer,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
StatusACTIVE
Connection StylePLAIN (PIPE) ALL ENDS
Nominal Thread Size0.250 INCHES SECOND END IN
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
MaterialSTEEL OVERALL
Thread Series DesignatorNPT ALL ENDS
Nominal Overall Length1.700 INCHES IN
Reducer TypeCONCENTRIC
Nominal Thread Size0.500 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3455-00-011-871917689 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
3455-00-239-5468INVOLUTE 2-2 5-3/4 INTERCHANGEABLE
Cutter,milling,involute Gear
F & D Tool Co Inc
Cross-Reference Index
Part NumberManufacturer
17689 PRIMARY Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA)
17689 Hyster-Yale Group, Inc. (USA)
Related Parts
3455-00-011-8719INTERCHANGEABLE
CUTTER,MILLING,END
17689
3455-00-239-5468INTERCHANGEABLE
CUTTER,MILLING,INVOLUTE GEAR
INVOLUTE 2-2 5-3/4

Frequently Asked Questions

What is NSN 4730-01-263-6424?

NSN 4730-01-263-6424 is a Reducer,pipe, 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 4730-01-263-6424?

NSN 4730-01-263-6424 has 2 cross-referenced part numbers: 17689 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling), 17689 (Hyster-Yale Group, Inc.).

What NSN replaces 4730-01-263-6424?

There are 2 known substitutes for 4730-01-263-6424: 3455-00-011-8719, 3455-00-239-5468. Verify interchangeability with system specifications before substitution.

What are the specifications of 17689?

Key specifications for 17689: Connection Style: PLAIN (PIPE) ALL ENDS; Nominal Thread Size: 0.250 INCHES SECOND END IN; Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Material: STEEL OVERALL. 8 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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