PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15744Seat,valve

Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 · NSN 4820-01-121-8650 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-121-8650 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-121-8650. Primary manufacturer part number: 15744.
Features
  • Seat,valve — FSC 4820
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
  • Body Outside Diameter: 1.500 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Plastic Polytetrafluoroethylene Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-121-8650, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-121-8650
Primary Part Number15744
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWorcester Controls Corp P O Box 2609 Cookeville Tn 385022609
StatusACTIVE
MaterialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Body Outside Diameter1.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-143-2978143C71 INTERCHANGEABLE
Cup,tapered Roller Bearing
Harbormaster Marine, Inc
5342-00-221-647015744 INTERCHANGEABLE
Plug
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
3455-01-088-0565157-44 INTERCHANGEABLE
Blade,circular Saw,metal Cutting
Kett Tool Company (inc)
3040-01-313-543615744 INTERCHANGEABLE
Shaft,straight
Forenta Lp
8145-01-357-441415744 INTERCHANGEABLE
Shipping and Storage Container,t
Naval Inventory Control Point
5910-01-518-416415744 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Basler Electric Co
6515-01-583-6853CAF-4 INTERCHANGEABLE
Forceps,microsurgical
Synovis Micro Companies Alliance, Inc.
6140-01-624-116315744 INTERCHANGEABLE
Cell,battery
Teledyne Flir Unmanned Ground Systems, Inc
Cross-Reference Index
Part NumberManufacturer
15744 Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 (USA)
Related Parts
3110-00-143-2978INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
143C71
5342-00-221-6470INTERCHANGEABLE
PLUG
15744
3455-01-088-0565INTERCHANGEABLE
BLADE,CIRCULAR SAW,METAL CUTTING
157-44
3040-01-313-5436INTERCHANGEABLE
SHAFT,STRAIGHT
15744
8145-01-357-4414INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,T
15744
5910-01-518-4164INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
15744
6515-01-583-6853INTERCHANGEABLE
FORCEPS,MICROSURGICAL
CAF-4
6140-01-624-1163INTERCHANGEABLE
CELL,BATTERY
15744

Frequently Asked Questions

What is NSN 4820-01-121-8650?

NSN 4820-01-121-8650 is a Seat,valve, manufactured by Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-121-8650?

NSN 4820-01-121-8650 has 1 cross-referenced part number: 15744 (Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609).

What NSN replaces 4820-01-121-8650?

There are 8 known substitutes for 4820-01-121-8650: 3110-00-143-2978, 5342-00-221-6470, 3455-01-088-0565 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15744?

Key specifications for 15744: Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL; End Item Identification: SERIES 44 VALVES; Body Outside Diameter: 1.500 INCHES NOMINAL IN. 3 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