PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

400-1-6Adapter,straight,pipe to Tube

Swagelok Co · NSN 4730-01-056-3641 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-056-3641 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-056-3641. Primary manufacturer part number: 400-1-6.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Nominal Thread Size: 0.438 INCHES FIRST END IN
  • Material: COPPER ALLOY NUT
  • Nominal Overall Length: 1.440 INCHES IN
  • Material: COPPER ALLOY 360 OR COPPER ALLOY BODY
  • Thread Series Designator: NPT SECOND END
  • Media for Which Designed: HYDRAULIC FLUID SINGLE RESPONSE
  • Material Document and Classification: QQ-B-626,COMP 22,1/2 H FED SPEC 1ST MATERIAL RESPONSE BODY
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Nut construction
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-01-056-3641, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-056-3641
Primary Part Number400-1-6
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSwagelok Co
StatusACTIVE
Nominal Thread Size0.438 INCHES FIRST END IN
MaterialCOPPER ALLOY NUT
Nominal Overall Length1.440 INCHES IN
MaterialCOPPER ALLOY 360 OR COPPER ALLOY BODY
Thread Series DesignatorNPT SECOND END
Media for Which DesignedHYDRAULIC FLUID SINGLE RESPONSE
Material Document and ClassificationQQ-B-626,COMP 22,1/2 H FED SPEC 1ST MATERIAL RESPONSE BODY
Connection StyleFLARELESS (TUBE) FIRST END
MaterialCOPPER ALLOY SLEEVE
Connection StylePLAIN (PIPE) SECOND END
Furnished Items and Quantity1 SHORT COUPLING NUT WITH SLEEVE AND 1 FERRULE SLEEVE
Nominal Thread Size0.375 INCHES SECOND END IN
Reduced Passage Nominal Inside Diameter0.180 INCHES SECOND END IN
Thread Class3A FIRST END A
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Seat Angle20.0 DEGREES FIRST END
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Thread Series DesignatorUNF FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4810-00-004-840424125 INTERCHANGEABLE
Valve,linear,directional Control
Erie Strayer Co
2940-00-161-0400 INTERCHANGEABLE
Filter Element,intake Air Cleane
5133-00-189-9283 INTERCHANGEABLE
Drill,twist
5315-00-584-955324125 INTERCHANGEABLE
Pin,grooved,headless
Moog Inc
5330-00-757-373824125 INTERCHANGEABLE
Gasket
Spirax Sarco Inc Dba Spirax Sarco
4730-01-057-0545120-01833-004 INTERCHANGEABLE
Elbow,pipe to Tube
Aqua-Chem, Inc. Dba Aqua-Chem Inc
5935-01-193-7298GC860EU3 INTERCHANGEABLE
Cover,electrical Connector
Northrop Grumman Systems Corporation
6515-01-213-6011241.25 INTERCHANGEABLE
Bone Plate
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
5975-01-245-7727 INTERCHANGEABLE
Box Connector,electrical
4810-01-311-8145 INTERCHANGEABLE
Body,valve
Cross-Reference Index
Part NumberManufacturer
C24125-3 Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies (USA)
400-1-6 PRIMARY Swagelok Co (USA)
B4-1MC-6 PRIMARY Tylok International, Inc. (USA)
24125 Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies (USA)
4-6FBZ-B PRIMARY Parker-Hannifin Corporation Div Instrumentation Products Division (USA)
Related Parts
4810-00-004-8404INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
24125
2940-00-161-0400INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
5133-00-189-9283INTERCHANGEABLE
DRILL,TWIST
5315-00-584-9553INTERCHANGEABLE
PIN,GROOVED,HEADLESS
24125
5330-00-757-3738INTERCHANGEABLE
GASKET
24125
4730-01-057-0545INTERCHANGEABLE
ELBOW,PIPE TO TUBE
120-01833-004
5935-01-193-7298INTERCHANGEABLE
COVER,ELECTRICAL CONNECTOR
GC860EU3
6515-01-213-6011INTERCHANGEABLE
BONE PLATE
241.25
5975-01-245-7727INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
4810-01-311-8145INTERCHANGEABLE
BODY,VALVE
5305-01-673-6541INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
7115221618

Frequently Asked Questions

What is NSN 4730-01-056-3641?

NSN 4730-01-056-3641 is a Adapter,straight,pipe to Tube, manufactured by Swagelok Co, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-056-3641?

NSN 4730-01-056-3641 has 5 cross-referenced part numbers: C24125-3 (Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies), 400-1-6 (Swagelok Co), B4-1MC-6 (Tylok International, Inc.), 24125 (Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies), 4-6FBZ-B (Parker-Hannifin Corporation Div Instrumentation Products Division).

What NSN replaces 4730-01-056-3641?

There are 11 known substitutes for 4730-01-056-3641: 4810-00-004-8404, 2940-00-161-0400, 5133-00-189-9283 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 400-1-6?

Key specifications for 400-1-6: Nominal Thread Size: 0.438 INCHES FIRST END IN; Material: COPPER ALLOY NUT; Nominal Overall Length: 1.440 INCHES IN; Material: COPPER ALLOY 360 OR COPPER ALLOY BODY. 19 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