PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15204Seat,valve

Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 · NSN 4820-00-577-7668 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-577-7668 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-577-7668. Primary manufacturer part number: 15204.
Features
  • Seat,valve — FSC 4820
  • Body Outside Diameter: 2.500 INCHES NOMINAL IN
  • Seat Angle in Deg: 30.000 NOMINAL
  • Seating Surface Shape: ANGULAR
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
  • Body Inside Diameter: 1.500 INCHES NOMINAL IN
  • Style Designator: PLAIN
  • 2 verified cross-references
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 4820-00-577-7668, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN4820-00-577-7668
Primary Part Number15204
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWorcester Controls Corp P O Box 2609 Cookeville Tn 385022609
StatusACTIVE
Body Outside Diameter2.500 INCHES NOMINAL IN
Seat Angle in Deg30.000 NOMINAL
Seating Surface ShapeANGULAR
MaterialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Body Inside Diameter1.500 INCHES NOMINAL IN
Style DesignatorPLAIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6680-00-229-497515204 INTERCHANGEABLE
Indicator,sight,liquid
Gits Mfg Co Inc
5120-00-293-299715194 INTERCHANGEABLE
Face,hammer,inserted
Nupla Corporation
7025-00-539-1505 INTERCHANGEABLE
Shaft,inter
5910-00-682-37910150-0070 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Keysight Technologies Inc
5305-00-812-3549 INTERCHANGEABLE
Screw,machine
5940-00-926-0026 INTERCHANGEABLE
Terminal,feedthru
5961-00-962-0535 INTERCHANGEABLE
Transistor
4820-01-071-4745 INTERCHANGEABLE
Seat,valve
5315-01-209-2888H15204 INTERCHANGEABLE
Pin,straight,headless
Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc
2590-01-378-9371 INTERCHANGEABLE
Pad,cushioning
Cross-Reference Index
Part NumberManufacturer
15204 Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 (USA)
C00243 Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 (USA)
Related Parts
6680-00-229-4975INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
15204
5120-00-293-2997INTERCHANGEABLE
FACE,HAMMER,INSERTED
15194
7025-00-539-1505INTERCHANGEABLE
SHAFT,INTER
5910-00-682-3791INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
0150-0070
5305-00-812-3549INTERCHANGEABLE
SCREW,MACHINE
5940-00-926-0026INTERCHANGEABLE
TERMINAL,FEEDTHRU
5961-00-962-0535INTERCHANGEABLE
TRANSISTOR
4820-01-071-4745INTERCHANGEABLE
SEAT,VALVE
5315-01-209-2888INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
H15204
2590-01-378-9371INTERCHANGEABLE
PAD,CUSHIONING
5310-01-384-5407INTERCHANGEABLE
WASHER,FLAT
5340-01-412-6315INTERCHANGEABLE
HANDLE,MANUAL CONTROL
1545 PIECE 4

Frequently Asked Questions

What is NSN 4820-00-577-7668?

NSN 4820-00-577-7668 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 4820-00-577-7668?

NSN 4820-00-577-7668 has 2 cross-referenced part numbers: 15204 (Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609), C00243 (Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609).

What NSN replaces 4820-00-577-7668?

There are 12 known substitutes for 4820-00-577-7668: 6680-00-229-4975, 5120-00-293-2997, 7025-00-539-1505 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15204?

Key specifications for 15204: Body Outside Diameter: 2.500 INCHES NOMINAL IN; Seat Angle in Deg: 30.000 NOMINAL; Seating Surface Shape: ANGULAR; Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL. 7 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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