PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MX 431-1LStopcock,intravenous Therapy

Medex, Inc. · NSN 6515-01-046-0344 · FSC 6515 · No Item Name Available
Verified by PartsTable
NSN 6515-01-046-0344 — this item is cataloged by the U.S. Government under National Stock Number 6515-01-046-0344. Primary manufacturer part number: MX 431-1L.
Features
  • Stopcock,intravenous Therapy — FSC 6515
  • Sterility: STERILE
  • Disposition After Initial Use: DISPOSABLE
  • Female Adapter End Quantity: 2
  • Male Adapter End: INCLUDED
  • Design Type: THREE-WAY
  • Material: PLASTIC LOCATION NOT OTHERWISE SPECIFIED
  • 7 verified cross-references
Applications
  • Applications requiring Plastic Location Not Otherwise Specified construction
General Description

The Stopcock,intravenous Therapy, cataloged under National Stock Number 6515-01-046-0344, is classified within Federal Supply Class 6515 (No Item Name Available) of the Medical, Dental, and Veterinary Equipment group. The primary manufacturer of record is Medex, Inc.. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: PG.

Technical Specifications
ParameterValue
NSN6515-01-046-0344
Primary Part NumberMX 431-1L
Item NameStopcock,intravenous Therapy
FSC / FSG6515 / 65 — No Item Name Available
ManufacturerMedex, Inc.
StatusCANCELLED
SterilitySTERILE
Disposition After Initial UseDISPOSABLE
Female Adapter End Quantity2
Male Adapter EndINCLUDED
Design TypeTHREE-WAY
MaterialPLASTIC LOCATION NOT OTHERWISE SPECIFIED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssuePG
Verified Substitutes 12
No Item Name Available
3110-00-156-502943606J INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
5330-00-298-9600SMB179116 INTERCHANGEABLE
Seal,nonmetallic Strip
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3110-00-554-60510901306 INTERCHANGEABLE
Bearing,ball,annular
Agco Corp Parts Opn
5950-00-645-443056-131 INTERCHANGEABLE
Coil,telephone
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
2530-00-734-7337 INTERCHANGEABLE
Lever Asy
4820-01-019-7381FB1X-OKP-102-N-7 INTERCHANGEABLE
Valve,check
Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division
5945-01-044-4136143-02 INTERCHANGEABLE
Relay,electromagnetic
Standex Electronics, Inc.
1680-01-070-9951 INTERCHANGEABLE
Plate Assy,brake,ho
5962-01-103-4294 INTERCHANGEABLE
Microcircuit,digital
Cross-Reference Index
Part NumberManufacturer
K169 Baxter Healthcare Corp Baxter Pharmaseal Convertors Div (USA)
MX 431-1L PRIMARY Medex, Inc. (USA)
K169A Baxter Healthcare Corp Baxter Pharmaseal Convertors Div (USA)
PK169A Baxter Healthcare Corp Baxter Pharmaseal Convertors Div (USA)
TR-N3W PRIMARY Abbott Laboratories Sorenson Research Div (USA)
14-302 PRIMARY Norton Co (USA)
K269 Baxter Healthcare Corp Baxter Pharmaseal Convertors Div (USA)
Related Parts
6515-01-098-6874SUCCESSOR
NO ITEM NAME AVAILABLE
3110-00-156-5029INTERCHANGEABLE
BEARING,BALL,ANNULAR
43606J
5330-00-298-9600INTERCHANGEABLE
SEAL,NONMETALLIC STRIP
SMB179116
3110-00-554-6051INTERCHANGEABLE
BEARING,BALL,ANNULAR
0901306
5950-00-645-4430INTERCHANGEABLE
COIL,TELEPHONE
56-131
2530-00-734-7337INTERCHANGEABLE
LEVER ASY
4820-01-019-7381INTERCHANGEABLE
VALVE,CHECK
FB1X-OKP-102-N-7
5945-01-044-4136INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
143-02
1680-01-070-9951INTERCHANGEABLE
PLATE ASSY,BRAKE,HO
5962-01-103-4294INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5930-01-300-5587INTERCHANGEABLE
SWITCH,SENSITIVE
14302
5342-01-313-6631INTERCHANGEABLE
LATCHING ARM

Frequently Asked Questions

What is NSN 6515-01-046-0344?

NSN 6515-01-046-0344 is a Stopcock,intravenous Therapy, manufactured by Medex, Inc., classified under FSC 6515 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6515-01-046-0344?

NSN 6515-01-046-0344 has 7 cross-referenced part numbers: K169 (Baxter Healthcare Corp Baxter Pharmaseal Convertors Div), MX 431-1L (Medex, Inc.), K169A (Baxter Healthcare Corp Baxter Pharmaseal Convertors Div), PK169A (Baxter Healthcare Corp Baxter Pharmaseal Convertors Div), TR-N3W (Abbott Laboratories Sorenson Research Div) and 2 more.

What NSN replaces 6515-01-046-0344?

There are 12 known substitutes for 6515-01-046-0344: 6515-01-098-6874, 3110-00-156-5029, 5330-00-298-9600 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MX 431-1L?

Key specifications for MX 431-1L: Sterility: STERILE; Special Features: CLEAR; SINGLE USE; NON-PYROGENIC; W/3 LUER CONNECTORS IN T CONFIGURATION. FOR USE IN DELIVERY OF PARENTERAL FLUIDS,BLOOD PRODUCTS DUCTS AND DRUGS ALSO CONTROLLING DIRECTION OF FLUID FLOW IN A VARIETY OF CLINICAL APPLICATIONS. INDIVIDUALLY PACKAGED; Disposition After Initial Use: DISPOSABLE; Female Adapter End Quantity: 2. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6515-01-046-0344 still in active supply?

NSN 6515-01-046-0344 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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