PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

09162 11/2IN TEFLOWSeat,valve

Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 · NSN 4820-00-602-2502 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-602-2502 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-602-2502. Primary manufacturer part number: 09162 11/2IN TEFLOW.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: FLAT
  • Style Designator: PLAIN
  • Body Outside Diameter: 2.125 INCHES NOMINAL IN
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
  • Body Inside Diameter: 1.250 INCHES NOMINAL IN
  • 3 verified cross-references
  • 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 4820-00-602-2502, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-602-2502
Primary Part Number09162 11/2IN TEFLOW
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWorcester Controls Corp P O Box 2609 Cookeville Tn 385022609
StatusACTIVE
Seating Surface ShapeFLAT
Style DesignatorPLAIN
Body Outside Diameter2.125 INCHES NOMINAL IN
MaterialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Body Inside Diameter1.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3110-00-157-0535 INTERCHANGEABLE
Bearing,roller,needle
5365-00-781-919601897 INTERCHANGEABLE
Bushing,nonmetallic
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5360-00-837-7499 INTERCHANGEABLE
Spring,steam Genera
4935-01-131-918462D265-1 INTERCHANGEABLE
Sampling Pack-Coolant
Naval Air Rework Facility Navairsyscom Hq
5365-01-216-1166 INTERCHANGEABLE
Bushing,drum
Cross-Reference Index
Part NumberManufacturer
09162 11/2IN TEFLOW Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 (USA)
155-98 Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 (USA)
C281 Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 (USA)
Related Parts
3110-00-157-0535INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
5365-00-781-9196INTERCHANGEABLE
BUSHING,NONMETALLIC
01897
5360-00-837-7499INTERCHANGEABLE
SPRING,STEAM GENERA
4935-01-131-9184INTERCHANGEABLE
SAMPLING PACK-COOLANT
62D265-1
5365-01-216-1166INTERCHANGEABLE
BUSHING,DRUM

Frequently Asked Questions

What is NSN 4820-00-602-2502?

NSN 4820-00-602-2502 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 4820-00-602-2502?

NSN 4820-00-602-2502 has 3 cross-referenced part numbers: 09162 11/2IN TEFLOW (Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609), 155-98 (Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609), C281 (Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609).

What NSN replaces 4820-00-602-2502?

There are 5 known substitutes for 4820-00-602-2502: 3110-00-157-0535, 5365-00-781-9196, 5360-00-837-7499 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 09162 11/2IN TEFLOW?

Key specifications for 09162 11/2IN TEFLOW: Overall Height: 0.437 INCHES NOMINAL IN; Seating Surface Shape: FLAT; Special Features: 6 GROOVES EQUALLY SPACED ON OUTER EDGE; Style Designator: PLAIN. 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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