PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40609-8 PC NO 25Piston,valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-515-9411 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-515-9411 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-515-9411. Primary manufacturer part number: 40609-8 PC NO 25.
Features
  • Piston,valve — FSC 4820
  • Material: STEEL COMP 303
  • Valve Size for Which Designed: 1.000 INCHES IN
  • Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
  • 3 verified cross-references
  • Primary manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 303 construction
General Description

The Piston,valve, cataloged under National Stock Number 4820-01-515-9411, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 3 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-515-9411
Primary Part Number40609-8 PC NO 25
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
MaterialSTEEL COMP 303
Valve Size for Which Designed1.000 INCHES IN
Material Document and ClassificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
9905-00-141-5326 INTERCHANGEABLE
Plate,identification
5999-01-010-1874 INTERCHANGEABLE
Mounting Pad,electrical-Electron
5998-01-237-3202103601 INTERCHANGEABLE
Circuit Card Assembly
Aimtron Systems, Llc
4820-01-515-904840609-8 PC NO 32 INTERCHANGEABLE
Retainer,disk,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-515-939240609-8 PC NO 33 INTERCHANGEABLE
Disk,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-515-939840609-8 PC NO 1 INTERCHANGEABLE
Regulator,thermostatic Temperatu
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-515-940440609-8 PC NO 16 INTERCHANGEABLE
Stem,fluid Valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-515-941240609-8 PC NO 27 INTERCHANGEABLE
Liner,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-515-941540609-8 PC NO 30 INTERCHANGEABLE
Seat,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-515-942740609-8 PC NO 31 INTERCHANGEABLE
Disk,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
1036-01 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40609-8 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40609-8 PC NO 25 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
9905-00-141-5326INTERCHANGEABLE
PLATE,IDENTIFICATION
5999-01-010-1874INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5998-01-237-3202INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
103601
4820-01-515-9048INTERCHANGEABLE
RETAINER,DISK,VALVE
40609-8 PC NO 32
4820-01-515-9392INTERCHANGEABLE
DISK,VALVE
40609-8 PC NO 33
4820-01-515-9398INTERCHANGEABLE
REGULATOR,THERMOSTATIC TEMPERATU
40609-8 PC NO 1
4820-01-515-9404INTERCHANGEABLE
STEM,FLUID VALVE
40609-8 PC NO 16
4820-01-515-9412INTERCHANGEABLE
LINER,VALVE
40609-8 PC NO 27
4820-01-515-9415INTERCHANGEABLE
SEAT,VALVE
40609-8 PC NO 30
4820-01-515-9427INTERCHANGEABLE
DISK,VALVE
40609-8 PC NO 31
5945-01-516-1262INTERCHANGEABLE
SOLENOID,ELECTRICAL
2049-00
5330-01-516-2879INTERCHANGEABLE
GASKET
2066-00

Frequently Asked Questions

What is NSN 4820-01-515-9411?

NSN 4820-01-515-9411 is a Piston,valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-515-9411?

NSN 4820-01-515-9411 has 3 cross-referenced part numbers: 1036-01 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40609-8 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40609-8 PC NO 25 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-515-9411?

There are 12 known substitutes for 4820-01-515-9411: 9905-00-141-5326, 5999-01-010-1874, 5998-01-237-3202 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40609-8 PC NO 25?

Key specifications for 40609-8 PC NO 25: Material: STEEL COMP 303; Valve Size for Which Designed: 1.000 INCHES IN; Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE; End Item Identification: E/I VALVE TEMPERATURE REQULATOR. 4 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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