PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

221501-20-16SReducer,tube

Danfoss Power Solutions II, Llc · NSN 4730-01-068-5416 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-068-5416 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-068-5416. Primary manufacturer part number: 221501-20-16S.
Features
  • Reducer,tube — FSC 4730
  • Nominal Overall Length: 1.594 INCHES IN
  • Nominal Outside Diameter Tube Accommodated: 1.250 INCHES FIRST END IN
  • Nominal Thread Size: 1.312 INCHES SECOND END IN
  • Thread Quantity Per Inch: 12 FIRST END
  • Material: STEEL OVERALL
  • Nominal Thread Size: 1.625 INCHES FIRST END IN
  • Connection Style: FLARED (TUBE) SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Reducer,tube, cataloged under National Stock Number 4730-01-068-5416, 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 Danfoss Power Solutions II, Llc. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-068-5416
Primary Part Number221501-20-16S
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDanfoss Power Solutions II, Llc
StatusACTIVE
Nominal Overall Length1.594 INCHES IN
Nominal Outside Diameter Tube Accommodated1.250 INCHES FIRST END IN
Nominal Thread Size1.312 INCHES SECOND END IN
Thread Quantity Per Inch12 FIRST END
MaterialSTEEL OVERALL
Nominal Thread Size1.625 INCHES FIRST END IN
Connection StyleFLARED (TUBE) SECOND END
Reducer TypeCONCENTRIC
Thread Quantity Per Inch12 SECOND END
Thread Series DesignatorUN SECOND END
Connection TypeTHREADED EXTERNAL TUBE SECOND END
Seat Angle37.0 DEGREES SECOND END
Seat Angle37.0 DEGREES FIRST END
Surface TreatmentCADMIUM OVERALL
Thread Class2B FIRST END
Thread Series DesignatorUN FIRST END
Thread Class2A SECOND END A
Nominal Outside Diameter Tube Accommodated1.000 INCHES SECOND END IN
Connection TypeTHREADED INTERNAL TUBE FIRST END
Connection StyleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-015-28707347 INTERCHANGEABLE
Gasket
Honeywell Limited Dba Honeywell Aerospace Toronto Div Aerospace-Toronto
5330-00-179-0881116-48-6 INTERCHANGEABLE
Seal,plain Encased
Trostel Albert Packing Ltd
1650-00-303-66357347 INTERCHANGEABLE
Support,tube,cylind
The Boeing Company Div Defense
5950-00-539-6778722828-001 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon
5310-00-620-184711A7236 INTERCHANGEABLE
Nut Connecting Tube
Napco International Llc Dba Napco International Inc
6105-00-635-04917347 INTERCHANGEABLE
Motor,alternating Current
Ward Leonard Ct Llc
3040-00-719-90687347 INTERCHANGEABLE
Gearshaft,spur
The Chelsea Clock Llc
5985-01-101-6854AS-2953/SPS-55 INTERCHANGEABLE
Antenna
Joint Electronics Type Designation System
5315-01-293-21417347 INTERCHANGEABLE
Pin,grooved,headless
O F Mossberg & Sons Inc
5305-01-598-937273478 INTERCHANGEABLE
Screw,cap,socket Head
Wells Technology, Inc.
Cross-Reference Index
Part NumberManufacturer
7347 Hannon Co Div Hanco International (USA)
10557673-5 General Dynamics Land Systems Canadacorp (CAN)
7347-8 Hannon Co Div Hanco International (USA)
221501-20-16S PRIMARY Danfoss Power Solutions II, Llc (USA)
Related Parts
5330-00-015-2870INTERCHANGEABLE
GASKET
7347
5330-00-179-0881INTERCHANGEABLE
SEAL,PLAIN ENCASED
116-48-6
1650-00-303-6635INTERCHANGEABLE
SUPPORT,TUBE,CYLIND
7347
5950-00-539-6778INTERCHANGEABLE
TRANSFORMER,POWER
722828-001
5310-00-620-1847INTERCHANGEABLE
NUT CONNECTING TUBE
11A7236
6105-00-635-0491INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
7347
3040-00-719-9068INTERCHANGEABLE
GEARSHAFT,SPUR
7347
5985-01-101-6854INTERCHANGEABLE
ANTENNA
AS-2953/SPS-55
5315-01-293-2141INTERCHANGEABLE
PIN,GROOVED,HEADLESS
7347
5305-01-598-9372INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
73478
5925-01-719-4093INTERCHANGEABLE
CIRCUIT BREAKER
7347
5340-01-721-2512INTERCHANGEABLE
CONNECTING LINK,RIGID
7347

Frequently Asked Questions

What is NSN 4730-01-068-5416?

NSN 4730-01-068-5416 is a Reducer,tube, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-068-5416?

NSN 4730-01-068-5416 has 4 cross-referenced part numbers: 7347 (Hannon Co Div Hanco International), 10557673-5 (General Dynamics Land Systems Canadacorp), 7347-8 (Hannon Co Div Hanco International), 221501-20-16S (Danfoss Power Solutions II, Llc).

What NSN replaces 4730-01-068-5416?

There are 12 known substitutes for 4730-01-068-5416: 5330-00-015-2870, 5330-00-179-0881, 1650-00-303-6635 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 221501-20-16S?

Key specifications for 221501-20-16S: Nominal Overall Length: 1.594 INCHES IN; Nominal Outside Diameter Tube Accommodated: 1.250 INCHES FIRST END IN; Nominal Thread Size: 1.312 INCHES SECOND END IN; Thread Quantity Per Inch: 12 FIRST END. 21 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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