PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

100151Reducer,pipe

Dh Instruments Inc. · NSN 4730-01-561-6675 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-561-6675 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-561-6675. Primary manufacturer part number: 100151.
Features
  • Reducer,pipe — FSC 4730
  • Connection Type: THREADED EXTERNAL PIPE ALL ENDS
  • Thread Quantity Per Inch: 14 FIRST END
  • Thread Quantity Per Inch: 18 SECOND END
  • Maximum Operating Temp: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Media for Which Designed: OIL FIRST RESPONSE
  • Style Designator: CENTER WRENCHING FACILITY
  • Thread Series Designator: NPT ALL ENDS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Reducer,pipe, cataloged under National Stock Number 4730-01-561-6675, 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 Dh Instruments Inc.. Government technical data includes 14 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-561-6675
Primary Part Number100151
Item NameReducer,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDh Instruments Inc.
StatusACTIVE
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
Thread Quantity Per Inch14 FIRST END
Thread Quantity Per Inch18 SECOND END
Maximum Operating Temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
Media for Which DesignedOIL FIRST RESPONSE
Style DesignatorCENTER WRENCHING FACILITY
Thread Series DesignatorNPT ALL ENDS
Operating Pressure1200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Media for Which DesignedFUEL SECOND RESPONSE
Nominal Overall Length1.620 INCHES IN
Nominal Width Across Flats0.870 INCHES CENTER BULKHEAD IN
MaterialCOPPER ALLOY OVERALL
Nominal Thread Size0.750 INCHES FIRST END IN
Nominal Thread Size0.500 INCHES SECOND END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-010-0151100151 INTERCHANGEABLE
Screw,cap,hexagon Head
General Motors Llc Dba General Motors Llc
5945-00-062-3437 INTERCHANGEABLE
Relay,electromagnetic
6240-00-155-795548 INTERCHANGEABLE
Lamp,incandescent
General Electric Company
5970-00-285-01472822-3 INTERCHANGEABLE
Insulator,bushing
Dynamic Air Engineering, Inc.
6685-00-324-540528223 INTERCHANGEABLE
Filter-Regulator-Gage-Lubricator
Ingersoll-Rand Company Dba Ingersoll-Rand
5935-00-351-033310015-1 INTERCHANGEABLE
Connector,receptacle,electrical
Microwave Devices Inc
4820-00-370-952428223 INTERCHANGEABLE
Sleeve,directional Control Linea
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5950-00-656-4304 INTERCHANGEABLE
Transformer,power
5995-00-980-7811 INTERCHANGEABLE
Cable,special Purpo
4720-01-130-9198FA1690GGG0170 INTERCHANGEABLE
Hose Assembly,nonmetallic
Danfoss Power Solutions II, Llc
Cross-Reference Index
Part NumberManufacturer
100151 Dh Instruments Inc. (USA)
28-223 Vianney Industries, Llc Dba Midland Metal Manufacturing Company (USA)
Related Parts
5305-00-010-0151INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
100151
5945-00-062-3437INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
6240-00-155-7955INTERCHANGEABLE
LAMP,INCANDESCENT
48
5970-00-285-0147INTERCHANGEABLE
INSULATOR,BUSHING
2822-3
6685-00-324-5405INTERCHANGEABLE
FILTER-REGULATOR-GAGE-LUBRICATOR
28223
5935-00-351-0333INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
10015-1
4820-00-370-9524INTERCHANGEABLE
SLEEVE,DIRECTIONAL CONTROL LINEA
28223
5950-00-656-4304INTERCHANGEABLE
TRANSFORMER,POWER
5995-00-980-7811INTERCHANGEABLE
CABLE,SPECIAL PURPO
4720-01-130-9198INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
FA1690GGG0170
5975-01-223-3907INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUCTOR
JCR-0040A
7021-01-395-6144INTERCHANGEABLE
COMPUTER SUBASSEMBLY

Frequently Asked Questions

What is NSN 4730-01-561-6675?

NSN 4730-01-561-6675 is a Reducer,pipe, manufactured by Dh Instruments Inc., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-561-6675?

NSN 4730-01-561-6675 has 2 cross-referenced part numbers: 100151 (Dh Instruments Inc.), 28-223 (Vianney Industries, Llc Dba Midland Metal Manufacturing Company).

What NSN replaces 4730-01-561-6675?

There are 12 known substitutes for 4730-01-561-6675: 5305-00-010-0151, 5945-00-062-3437, 6240-00-155-7955 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 100151?

Key specifications for 100151: Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Thread Quantity Per Inch: 14 FIRST END; Thread Quantity Per Inch: 18 SECOND END; Maximum Operating Temp: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF. 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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