PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2601-3Seat,valve

Tescom Corp Dba Tescom Div Tescom · NSN 4820-00-127-8818 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-127-8818 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-127-8818. Primary manufacturer part number: 2601-3.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: RADIAL
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
  • Style Designator: PLAIN
  • Body Inside Diameter: 0.077 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
  • Body Outside Diameter: 0.500 INCHES NOMINAL IN
  • Seat Radius: 0.026 INCHES NOMINAL IN
  • 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 4820-00-127-8818, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Tescom Corp Dba Tescom Div Tescom. 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-127-8818
Primary Part Number2601-3
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTescom Corp Dba Tescom Div Tescom
StatusACTIVE
Seating Surface ShapeRADIAL
MaterialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Style DesignatorPLAIN
Body Inside Diameter0.077 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
Body Outside Diameter0.500 INCHES NOMINAL IN
Seat Radius0.026 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5905-00-051-5304 INTERCHANGEABLE
Resistor,fixed,film
5905-00-197-4289 INTERCHANGEABLE
Resistor,fixed,film
4730-00-208-688626013 INTERCHANGEABLE
Elbow,flange to Hose
Trw Inc Trw Intl Trade Government Sales Dept
5330-00-527-5993244D1 INTERCHANGEABLE
Seal,plain Encased
Curtiss-Wright Controls, Inc. Div Actuation Division
5999-00-811-7301 INTERCHANGEABLE
Contact,electrical
3030-01-023-267413261 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
4820-01-067-7533 INTERCHANGEABLE
Valve,safety Relief
6920-01-194-766826649B INTERCHANGEABLE
Kit,splice Bar
Conductix Inc Div Conductix Wampfler
Cross-Reference Index
Part NumberManufacturer
2601-3 PRIMARY Tescom Corp Dba Tescom Div Tescom (USA)
26-1630-24-324 Tescom Corp Dba Tescom Div Tescom (USA)
Related Parts
5905-00-051-5304INTERCHANGEABLE
RESISTOR,FIXED,FILM
5905-00-197-4289INTERCHANGEABLE
RESISTOR,FIXED,FILM
4730-00-208-6886INTERCHANGEABLE
ELBOW,FLANGE TO HOSE
26013
5330-00-527-5993INTERCHANGEABLE
SEAL,PLAIN ENCASED
244D1
5999-00-811-7301INTERCHANGEABLE
CONTACT,ELECTRICAL
3030-01-023-2674INTERCHANGEABLE
BELT,V
13261
4820-01-067-7533INTERCHANGEABLE
VALVE,SAFETY RELIEF
6920-01-194-7668INTERCHANGEABLE
KIT,SPLICE BAR
26649B

Frequently Asked Questions

What is NSN 4820-00-127-8818?

NSN 4820-00-127-8818 is a Seat,valve, manufactured by Tescom Corp Dba Tescom Div Tescom, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-127-8818?

NSN 4820-00-127-8818 has 2 cross-referenced part numbers: 2601-3 (Tescom Corp Dba Tescom Div Tescom), 26-1630-24-324 (Tescom Corp Dba Tescom Div Tescom).

What NSN replaces 4820-00-127-8818?

There are 8 known substitutes for 4820-00-127-8818: 5905-00-051-5304, 5905-00-197-4289, 4730-00-208-6886 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2601-3?

Key specifications for 2601-3: Seating Surface Shape: RADIAL; Overall Height: 0.122 INCHES NOMINAL IN; Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL; 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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