PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B01579Seat,valve

Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 · NSN 4820-00-757-2983 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-757-2983 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-757-2983. Primary manufacturer part number: B01579.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: FLAT
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
  • Style Designator: PLAIN
  • Body Inside Diameter: 2.194 INCHES MINIMUM AND 2.210 INCHES MAXIMUM IN
  • Body Outside Diameter: 2.364 INCHES MINIMUM AND 2.380 INCHES MAXIMUM 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 4820-00-757-2983, 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-757-2983
Primary Part NumberB01579
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWorcester Controls Corp P O Box 2609 Cookeville Tn 385022609
StatusACTIVE
Seating Surface ShapeFLAT
MaterialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Style DesignatorPLAIN
Body Inside Diameter2.194 INCHES MINIMUM AND 2.210 INCHES MAXIMUM IN
Body Outside Diameter2.364 INCHES MINIMUM AND 2.380 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4730-00-446-7343 INTERCHANGEABLE
Strainer Element,sediment
5331-00-522-852016204 INTERCHANGEABLE
O-Ring
Aerosonic Llc
5340-00-953-286613996 INTERCHANGEABLE
Clip,spring Tension
Rotron Incorporated
5330-01-027-8819 INTERCHANGEABLE
Gasket
5331-01-107-4954M83461/1-114 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
3110-01-164-67757-113300062 INTERCHANGEABLE
Bearing,ball,duplex
Mpb Corporation Dba Mpb Corp
5340-01-515-05432HA509 INTERCHANGEABLE
Bumper
Oshkosh Defense Llc
5306-01-584-987913996 INTERCHANGEABLE
Bolt,machine
Generac Mobile Products, Llc
5945-01-687-521313-996 INTERCHANGEABLE
Link,solenoid
Thermo King Corporation Dba Phoenix Global Distirbution.
Cross-Reference Index
Part NumberManufacturer
B01579 Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 (USA)
13996 Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 (USA)
45-15-65-13-63 Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 (USA)
Related Parts
4730-00-446-7343INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
5331-00-522-8520INTERCHANGEABLE
O-RING
16204
5340-00-953-2866INTERCHANGEABLE
CLIP,SPRING TENSION
13996
5330-01-027-8819INTERCHANGEABLE
GASKET
5331-01-107-4954INTERCHANGEABLE
O-RING
M83461/1-114
3110-01-164-6775INTERCHANGEABLE
BEARING,BALL,DUPLEX
7-113300062
5340-01-515-0543INTERCHANGEABLE
BUMPER
2HA509
5306-01-584-9879INTERCHANGEABLE
BOLT,MACHINE
13996
5945-01-687-5213INTERCHANGEABLE
LINK,SOLENOID
13-996

Frequently Asked Questions

What is NSN 4820-00-757-2983?

NSN 4820-00-757-2983 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 4820-00-757-2983?

NSN 4820-00-757-2983 has 3 cross-referenced part numbers: B01579 (Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609), 13996 (Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609), 45-15-65-13-63 (Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609).

What NSN replaces 4820-00-757-2983?

There are 9 known substitutes for 4820-00-757-2983: 4730-00-446-7343, 5331-00-522-8520, 5340-00-953-2866 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B01579?

Key specifications for B01579: Seating Surface Shape: FLAT; Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL; Style Designator: PLAIN; Body Inside Diameter: 2.194 INCHES MINIMUM AND 2.210 INCHES MAXIMUM IN. 6 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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