PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8994Reducer,tube

Eg&g, Inc. Optoelectronics Division Div Judson Technologies · NSN 4730-01-145-1873 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-145-1873 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-145-1873. Primary manufacturer part number: 8994.
Features
  • Reducer,tube — FSC 4730
  • Media for Which Designed: GAS SINGLE RESPONSE
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SECOND END
  • Connection Style: FLARED (TUBE) SECOND END
  • Nominal Thread Size: 0.125 INCHES SECOND END IN
  • Operating Pressure: 7500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Nominal Overall Length: 1.000 INCHES IN
  • Connection Type: THREADED INTERNAL TUBE FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Reducer,tube, cataloged under National Stock Number 4730-01-145-1873, 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 Eg&g, Inc. Optoelectronics Division Div Judson Technologies. Government technical data includes 10 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-145-1873
Primary Part Number8994
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerEg&g, Inc. Optoelectronics Division Div Judson Technologies
StatusACTIVE
Media for Which DesignedGAS SINGLE RESPONSE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SECOND END
Connection StyleFLARED (TUBE) SECOND END
Nominal Thread Size0.125 INCHES SECOND END IN
Operating Pressure7500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Overall Length1.000 INCHES IN
Connection TypeTHREADED INTERNAL TUBE FIRST END
Connection TypeTHREADED EXTERNAL TUBE SECOND END
Reducer TypeCONCENTRIC
Connection StyleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5935-00-173-57219729-169 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Eby Group, Llc, the Dba Eby Company Div Eby Company
5360-00-291-51208994 INTERCHANGEABLE
Spring,helical,compression
Arvinmeritor Inc
5935-00-577-2484117788 INTERCHANGEABLE
Plug,tip
Dne Technologies, Inc
5950-01-078-35448994 INTERCHANGEABLE
Reactor
Exxelia Usa, Inc.
4820-01-308-17708994-8-2.5IN INTERCHANGEABLE
Seat,valve
William E Williams Valve Corp
4820-01-310-4256151F-5 4.00IPS 8994 INTERCHANGEABLE
Valve,check
William E Williams Valve Corp
4820-01-310-43718994 ITEM 2 4.00IPS INTERCHANGEABLE
Disk,valve
William E Williams Valve Corp
Cross-Reference Index
Part NumberManufacturer
8994 PRIMARY Eg&g, Inc. Optoelectronics Division Div Judson Technologies (USA)
8994 Raytheon Company Dba Raytheon (USA)
Related Parts
5935-00-173-5721INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
9729-169
5360-00-291-5120INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
8994
5935-00-577-2484INTERCHANGEABLE
PLUG,TIP
117788
5950-01-078-3544INTERCHANGEABLE
REACTOR
8994
4820-01-308-1770INTERCHANGEABLE
SEAT,VALVE
8994-8-2.5IN
4820-01-310-4256INTERCHANGEABLE
VALVE,CHECK
151F-5 4.00IPS 8994
4820-01-310-4371INTERCHANGEABLE
DISK,VALVE
8994 ITEM 2 4.00IPS

Frequently Asked Questions

What is NSN 4730-01-145-1873?

NSN 4730-01-145-1873 is a Reducer,tube, manufactured by Eg&g, Inc. Optoelectronics Division Div Judson Technologies, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-145-1873?

NSN 4730-01-145-1873 has 2 cross-referenced part numbers: 8994 (Eg&g, Inc. Optoelectronics Division Div Judson Technologies), 8994 (Raytheon Company Dba Raytheon).

What NSN replaces 4730-01-145-1873?

There are 7 known substitutes for 4730-01-145-1873: 5935-00-173-5721, 5360-00-291-5120, 5935-00-577-2484 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8994?

Key specifications for 8994: Media for Which Designed: GAS SINGLE RESPONSE; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SECOND END; Connection Style: FLARED (TUBE) SECOND END; Nominal Thread Size: 0.125 INCHES SECOND END IN. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com