PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B-810-1-4Adapter,straight,pipe to Tube

Swagelok Co · NSN 4730-00-691-5444 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-691-5444 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-691-5444. Primary manufacturer part number: B-810-1-4.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Seat Angle: 20.0 DEGREES FIRST END
  • Connection Style: FLARELESS (TUBE) FIRST END
  • Material: COPPER ALLOY OVERALL
  • Nominal Thread Size: 0.750 INCHES FIRST END IN
  • Thread Class: 3A FIRST END A
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Furnished Items and Quantity: 1 FERRULE SLEEVE AND 1 SHORT COUPLING NUT
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-691-5444, 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 Swagelok Co. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-691-5444
Primary Part NumberB-810-1-4
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSwagelok Co
StatusCANCELLED
Seat Angle20.0 DEGREES FIRST END
Connection StyleFLARELESS (TUBE) FIRST END
MaterialCOPPER ALLOY OVERALL
Nominal Thread Size0.750 INCHES FIRST END IN
Thread Class3A FIRST END A
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Furnished Items and Quantity1 FERRULE SLEEVE AND 1 SHORT COUPLING NUT
Nominal Outside Diameter Tube Accommodated0.500 INCHES FIRST END IN
Nominal Thread Size0.250 INCHES SECOND END IN
Connection StylePLAIN (PIPE) SECOND END
Nominal Pipe Size Accommodated0.250 INCHES SECOND END IN
Thread Series DesignatorNPT SECOND END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Nominal Overall Length1.710 INCHES IN
Thread Series DesignatorUNF FIRST END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
4730-00-055-987722205764 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Richmond Supply Company Dba Richmond Supply Co
4730-00-055-98796533-16-3 ITEM 3 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
4730-00-588-26874CM4BR INTERCHANGEABLE
Adapter,straight,pipe to Tube
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
4730-00-701-28873MSC2N-B INTERCHANGEABLE
Adapter,straight,pipe to Tube
Parker-Hannifin Corporation Div Instrumentation Products Division
5935-01-602-3019B-810-1-4 INTERCHANGEABLE
Connector,electron Tube
Mcmaster-Carr Supply Co
Cross-Reference Index
Part NumberManufacturer
2D62197K-001 Northrop Grumman Systems Corporation Div Marine Systems (USA)
8MSC4N-B Parker-Hannifin Corporation Div Instrumentation Products Division (USA)
768FB1/2X1/4 Imperial (USA)
8-4 FBZ-B Parker-Hannifin Corporation Div Instrumentation Products Division (USA)
8-4FB12B Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
2488290 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
B-810-1-4 PRIMARY Swagelok Co (USA)
533492 Raytheon Company Dba Raytheon (USA)
533492-15 Raytheon Company Dba Raytheon (USA)
B-810-1-4 South London Valve & Fitting Company Ltd T/a Swagelok London (GBR)
B8-1MC-4 Tylok International, Inc. (USA)
2D62197PK Northrop Grumman Systems Corporation Div Marine Systems (USA)
8-4-FB12-B Fd Johnson Co (USA)
768FB Imperial (USA)
768-FB-08X04 Imperial (USA)
Related Parts
4730-00-055-9877INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
22205764
4730-00-055-9879INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
6533-16-3 ITEM 3
4730-00-588-2687INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4CM4BR
4730-00-701-2887INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
3MSC2N-B
5935-01-602-3019INTERCHANGEABLE
CONNECTOR,ELECTRON TUBE
B-810-1-4

Frequently Asked Questions

What is NSN 4730-00-691-5444?

NSN 4730-00-691-5444 is a Adapter,straight,pipe to Tube, manufactured by Swagelok Co, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-691-5444?

NSN 4730-00-691-5444 has 15 cross-referenced part numbers: 2D62197K-001 (Northrop Grumman Systems Corporation Div Marine Systems), 8MSC4N-B (Parker-Hannifin Corporation Div Instrumentation Products Division), 768FB1/2X1/4 (Imperial), 8-4 FBZ-B (Parker-Hannifin Corporation Div Instrumentation Products Division), 8-4FB12B (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division) and 10 more.

What NSN replaces 4730-00-691-5444?

There are 5 known substitutes for 4730-00-691-5444: 4730-00-055-9877, 4730-00-055-9879, 4730-00-588-2687 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B-810-1-4?

Key specifications for B-810-1-4: Seat Angle: 20.0 DEGREES FIRST END; Connection Style: FLARELESS (TUBE) FIRST END; Material: COPPER ALLOY OVERALL; Nominal Thread Size: 0.750 INCHES FIRST END IN. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-691-5444 still in active supply?

NSN 4730-00-691-5444 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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