PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4CN 1/4 BRASSNipple,pipe

Swagelok Co · NSN 4730-01-339-4642 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-339-4642 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-339-4642. Primary manufacturer part number: 4CN 1/4 BRASS.
Features
  • Nipple,pipe — FSC 4730
  • Thread Series Designator: NPT ALL ENDS
  • Connection Type: THREADED EXTERNAL PIPE ALL ENDS
  • Material: COPPER ALLOY AND STEEL OVERALL
  • Style Designator: CENTER WRENCHING FACILITY
  • Nominal Overall Length: 1.120 INCHES IN
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Reduced Passage Nominal Inside Diameter: 0.280 INCHES ALL ENDS IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy and Steel Overall construction
General Description

The Nipple,pipe, cataloged under National Stock Number 4730-01-339-4642, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-01-339-4642
Primary Part Number4CN 1/4 BRASS
Item NameNipple,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSwagelok Co
StatusCANCELLED
Thread Series DesignatorNPT ALL ENDS
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
MaterialCOPPER ALLOY AND STEEL OVERALL
Style DesignatorCENTER WRENCHING FACILITY
Nominal Overall Length1.120 INCHES IN
Connection StylePLAIN (PIPE) ALL ENDS
Reduced Passage Nominal Inside Diameter0.280 INCHES ALL ENDS IN
Nominal Thread Size0.250 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5310-00-685-142909485-3-15 INTERCHANGEABLE
Nut,plain,hexagon
Met-Pro Corporation
5970-01-288-711951-1835-1 INTERCHANGEABLE
Insulator,plate
Textron Systems Corporation Dba Textron Systems Corp
Cross-Reference Index
Part NumberManufacturer
4CN 1/4 BRASS PRIMARY Swagelok Co (USA)
51-18-35 Brooks Automation, Inc. Div Cti Cryogenics (USA)
B-4-CN PRIMARY Swagelok Co (USA)
4CN 1/4 BRASS Cajon Co (USA)
B-4-CN Cajon Co (USA)
Related Parts
5310-00-685-1429INTERCHANGEABLE
NUT,PLAIN,HEXAGON
09485-3-15
5970-01-288-7119INTERCHANGEABLE
INSULATOR,PLATE
51-1835-1

Frequently Asked Questions

What is NSN 4730-01-339-4642?

NSN 4730-01-339-4642 is a Nipple,pipe, manufactured by Swagelok Co, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-01-339-4642?

NSN 4730-01-339-4642 has 5 cross-referenced part numbers: 4CN 1/4 BRASS (Swagelok Co), 51-18-35 (Brooks Automation, Inc. Div Cti Cryogenics), B-4-CN (Swagelok Co), 4CN 1/4 BRASS (Cajon Co), B-4-CN (Cajon Co).

What NSN replaces 4730-01-339-4642?

There are 2 known substitutes for 4730-01-339-4642: 5310-00-685-1429, 5970-01-288-7119. Verify interchangeability with system specifications before substitution.

What are the specifications of 4CN 1/4 BRASS?

Key specifications for 4CN 1/4 BRASS: Thread Series Designator: NPT ALL ENDS; Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Material: COPPER ALLOY AND STEEL OVERALL; Style Designator: CENTER WRENCHING FACILITY. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-01-339-4642 still in active supply?

NSN 4730-01-339-4642 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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