PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31000-186Elbow,flange to Pipe

Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · NSN 4730-01-689-1144 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-689-1144 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-689-1144. Primary manufacturer part number: 31000-186.
Features
  • Elbow,flange to Pipe — FSC 4730
  • Nominal Length: 1.44 INCHES ALL ENDS IN
  • Material: STEEL OVERALL
  • Connection Type: THREADED EXTERNAL TUBE ALL ENDS
  • Thread Series Designator: UN AND UNF ALL ENDS
  • Nominal Thread Size: 0.8125 INCHES FIRST END IN
  • Nominal Outside Diameter: 0.500 INCHES ALL ENDS IN
  • Surface Treatment: ZINC OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Elbow,flange to Pipe, cataloged under National Stock Number 4730-01-689-1144, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 7 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
NSN4730-01-689-1144
Primary Part Number31000-186
Item NameElbow,flange to Pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
StatusACTIVE
Nominal Length1.44 INCHES ALL ENDS IN
MaterialSTEEL OVERALL
Connection TypeTHREADED EXTERNAL TUBE ALL ENDS
Thread Series DesignatorUN AND UNF ALL ENDS
Nominal Thread Size0.8125 INCHES FIRST END IN
Nominal Outside Diameter0.500 INCHES ALL ENDS IN
Surface TreatmentZINC OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5930-00-976-43593100-0186 INTERCHANGEABLE
Switch,rotary
Keysight Technologies Inc
4730-01-282-50818 F50L0-S INTERCHANGEABLE
Adapter,straight,tube to Boss
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
Cross-Reference Index
Part NumberManufacturer
31000-186 PRIMARY Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
8F5L Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
Related Parts
5930-00-976-4359INTERCHANGEABLE
SWITCH,ROTARY
3100-0186
4730-01-282-5081INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
8 F50L0-S

Frequently Asked Questions

What is NSN 4730-01-689-1144?

NSN 4730-01-689-1144 is a Elbow,flange to Pipe, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-689-1144?

NSN 4730-01-689-1144 has 2 cross-referenced part numbers: 31000-186 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 8F5L (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division).

What NSN replaces 4730-01-689-1144?

There are 2 known substitutes for 4730-01-689-1144: 5930-00-976-4359, 4730-01-282-5081. Verify interchangeability with system specifications before substitution.

What are the specifications of 31000-186?

Key specifications for 31000-186: Nominal Length: 1.44 INCHES ALL ENDS IN; Special Features: PORT THREAD 0.750 INCHES IN; Material: STEEL OVERALL; Connection Type: THREADED EXTERNAL TUBE ALL ENDS. 9 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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