PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B405-3Insert,tube Fitting

Swagelok Co · NSN 4730-00-771-5313 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-771-5313 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-771-5313. Primary manufacturer part number: B405-3.
Features
  • Insert,tube Fitting — FSC 4730
  • Casehardening Indicator: CASEHARDENED
  • Style Designator: PLAIN
  • Tube Inside Diameter for Which Designed: 0.250 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • 6 verified cross-references
  • Primary manufacturer: Swagelok Co
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 4730-00-771-5313, 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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 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
NSN4730-00-771-5313
Primary Part NumberB405-3
Item NameInsert,tube Fitting
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSwagelok Co
StatusACTIVE
Casehardening IndicatorCASEHARDENED
Style DesignatorPLAIN
Tube Inside Diameter for Which Designed0.250 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-196-6695 INTERCHANGEABLE
Gasket
6680-00-226-969680374-1 INTERCHANGEABLE
Indicator,sight,liquid
L3harris Technologies, Inc. Div Space and Airborne Systems
5365-00-515-35134053 INTERCHANGEABLE
Spacer,ring
Johns Manville Intl
6210-00-782-1739 INTERCHANGEABLE
Lens,light
5305-00-958-59694053U INTERCHANGEABLE
Thumbscrew
Roller Bearing Co of America, Inc Div Pic Design
6645-00-963-59064053 INTERCHANGEABLE
Jewel Assembly,uppe
Wakmann Watch Company Inc
5935-00-988-423733-7143-4 INTERCHANGEABLE
Connector,receptacle,electrical
Amphenol Corporation Div Amphenol Rf
6515-01-228-60244053 INTERCHANGEABLE
Syringe,hypodermic
Smiths Medical Asd Inc Dba Smiths Medical Asd, Inc
6515-01-276-14171112843 INTERCHANGEABLE
Mask,oronasal
Mckesson Medical-Surgical Inc. Dba Mckesson Medical-Surgical Inc
3130-01-297-8219 INTERCHANGEABLE
Bearing Unit,ball
Cross-Reference Index
Part NumberManufacturer
4 T1Z(.188) Parker-Hannifin Corporation Div Instrumentation Products Division (USA)
4.188T1Z-B Parker-Hannifin Corporation Div Instrumentation Products Division (USA)
405-3 Swagelok Co (USA)
4(.188)T23UI-B A. F. Brock & Co. Dba a. F. Brock & Co. / Ph, Inc (USA)
4(.188)T23UI-B Parker-Hannifin Corporation Div Instrumentation Products Division (USA)
B405-3 PRIMARY Swagelok Co (USA)
Related Parts
5330-00-196-6695INTERCHANGEABLE
GASKET
6680-00-226-9696INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
80374-1
5365-00-515-3513INTERCHANGEABLE
SPACER,RING
4053
6210-00-782-1739INTERCHANGEABLE
LENS,LIGHT
5305-00-958-5969INTERCHANGEABLE
THUMBSCREW
4053U
6645-00-963-5906INTERCHANGEABLE
JEWEL ASSEMBLY,UPPE
4053
5935-00-988-4237INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
33-7143-4
6515-01-228-6024INTERCHANGEABLE
SYRINGE,HYPODERMIC
4053
6515-01-276-1417INTERCHANGEABLE
MASK,ORONASAL
1112843
3130-01-297-8219INTERCHANGEABLE
BEARING UNIT,BALL
3110-01-364-7527INTERCHANGEABLE
COLLAR,BEARING
405-3
5340-01-395-9621INTERCHANGEABLE
STANDOFF,THREADED,SPACING
4053

Frequently Asked Questions

What is NSN 4730-00-771-5313?

NSN 4730-00-771-5313 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 4730-00-771-5313?

NSN 4730-00-771-5313 has 6 cross-referenced part numbers: 4 T1Z(.188) (Parker-Hannifin Corporation Div Instrumentation Products Division), 4.188T1Z-B (Parker-Hannifin Corporation Div Instrumentation Products Division), 405-3 (Swagelok Co), 4(.188)T23UI-B (A. F. Brock & Co. Dba a. F. Brock & Co. / Ph, Inc), 4(.188)T23UI-B (Parker-Hannifin Corporation Div Instrumentation Products Division) and 1 more.

What NSN replaces 4730-00-771-5313?

There are 12 known substitutes for 4730-00-771-5313: 5330-00-196-6695, 6680-00-226-9696, 5365-00-515-3513 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B405-3?

Key specifications for B405-3: Casehardening Indicator: CASEHARDENED; Style Designator: PLAIN; Tube Inside Diameter for Which Designed: 0.250 INCHES NOMINAL IN; Material: COPPER ALLOY. 4 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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