PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B815-6Insert,tube Fitting

Swagelok Co · NSN 4730-00-771-5306 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-771-5306 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-771-5306. Primary manufacturer part number: B815-6.
Features
  • Insert,tube Fitting — FSC 4730
  • Style Designator: SERRATED
  • Tube Inside Diameter for Which Designed: 0.375 INCHES NOMINAL IN
  • Flange Outside Diameter: 0.495 INCHES NOMINAL IN
  • Sleeve Outside Diameter: 0.375 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Casehardening Indicator: NOT CASEHARDENED
  • 3 verified cross-references
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy construction
General Description

The Insert,tube Fitting, cataloged under National Stock Number 4730-00-771-5306, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-771-5306
Primary Part NumberB815-6
Item NameInsert,tube Fitting
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSwagelok Co
StatusACTIVE
Style DesignatorSERRATED
Tube Inside Diameter for Which Designed0.375 INCHES NOMINAL IN
Flange Outside Diameter0.495 INCHES NOMINAL IN
Sleeve Outside Diameter0.375 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Casehardening IndicatorNOT CASEHARDENED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5930-00-259-7286 INTERCHANGEABLE
Switch,rotary
4730-00-328-48050031130-015 INTERCHANGEABLE
Elbow,pipe
Cleveland Service Center
3120-00-353-758923688 INTERCHANGEABLE
Bushing,sleeve
Briggs and Stratton Corp
5315-00-511-72919918156 INTERCHANGEABLE
Key,woodruff
Alfa Laval Inc
1620-00-600-5508 INTERCHANGEABLE
Damper Assy,nose La
5360-00-601-40838156 INTERCHANGEABLE
Spring,helical,extension
Fwd Seagrave Holdings Lp
5960-00-942-0932 INTERCHANGEABLE
Electron Tube
5950-01-081-66858156 INTERCHANGEABLE
Transformer,power
Electrac Space Electronics Laboratory Inc Vibration Instruments Co Div
5962-01-169-5126 INTERCHANGEABLE
Microcircuit,memory
5120-01-425-89958156 INTERCHANGEABLE
Socket,socket Wrench
Wright Tool Co
Cross-Reference Index
Part NumberManufacturer
815-6 Swagelok Co (USA)
8 T1Z(.375) Parker-Hannifin Corporation Div Instrumentation Products Division (USA)
B815-6 PRIMARY Swagelok Co (USA)
Related Parts
5930-00-259-7286INTERCHANGEABLE
SWITCH,ROTARY
4730-00-328-4805INTERCHANGEABLE
ELBOW,PIPE
0031130-015
3120-00-353-7589INTERCHANGEABLE
BUSHING,SLEEVE
23688
5315-00-511-7291INTERCHANGEABLE
KEY,WOODRUFF
9918156
1620-00-600-5508INTERCHANGEABLE
DAMPER ASSY,NOSE LA
5360-00-601-4083INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
8156
5960-00-942-0932INTERCHANGEABLE
ELECTRON TUBE
5950-01-081-6685INTERCHANGEABLE
TRANSFORMER,POWER
8156
5962-01-169-5126INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5120-01-425-8995INTERCHANGEABLE
SOCKET,SOCKET WRENCH
8156

Frequently Asked Questions

What is NSN 4730-00-771-5306?

NSN 4730-00-771-5306 is a Insert,tube Fitting, manufactured by Swagelok Co, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-771-5306?

NSN 4730-00-771-5306 has 3 cross-referenced part numbers: 815-6 (Swagelok Co), 8 T1Z(.375) (Parker-Hannifin Corporation Div Instrumentation Products Division), B815-6 (Swagelok Co).

What NSN replaces 4730-00-771-5306?

There are 10 known substitutes for 4730-00-771-5306: 5930-00-259-7286, 4730-00-328-4805, 3120-00-353-7589 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B815-6?

Key specifications for B815-6: Style Designator: SERRATED; Tube Inside Diameter for Which Designed: 0.375 INCHES NOMINAL IN; Flange Outside Diameter: 0.495 INCHES NOMINAL IN; Sleeve Outside Diameter: 0.375 INCHES NOMINAL IN. 6 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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