PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40612-8 PC NO 25Piston,valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-516-0320 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-516-0320 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-516-0320. Primary manufacturer part number: 40612-8 PC NO 25.
Features
  • Piston,valve — FSC 4820
  • Valve Size for Which Designed: 2.000 INCHES IN
  • Valve Design Control Activity: 55378
  • Material: STEEL CORROSION RESISTING
  • 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 Corrosion Resisting construction
General Description

The Piston,valve, cataloged under National Stock Number 4820-01-516-0320, 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
NSN4820-01-516-0320
Primary Part Number40612-8 PC NO 25
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Valve Size for Which Designed2.000 INCHES IN
Valve Design Control Activity55378
MaterialSTEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-257-7185105-80-1 INTERCHANGEABLE
Plug,tip
Kearfott Corporation Div Guidance and Navigation Division
2840-00-775-4461406128 INTERCHANGEABLE
Seal,air,aircraft Gas Turbine En
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5935-00-817-3030 INTERCHANGEABLE
Jack,tip
5999-01-087-9279 INTERCHANGEABLE
Contact,electrical
7021-01-472-2606105801 INTERCHANGEABLE
Computer Subassembly
Textron Systems Corporation Dba Textron Systems Corp
4820-01-516-032440612-8 PC NO 27 INTERCHANGEABLE
Liner,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-516-03261863-00 INTERCHANGEABLE
Seat,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-516-032740612-8 PC NO 33 INTERCHANGEABLE
Disk,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-516-033040612-8 PC NO 31 INTERCHANGEABLE
Disk,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5945-01-516-12622049-00 INTERCHANGEABLE
Solenoid,electrical
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
1058-01 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40612-8 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40612-8 PC NO 25 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5935-00-257-7185INTERCHANGEABLE
PLUG,TIP
105-80-1
2840-00-775-4461INTERCHANGEABLE
SEAL,AIR,AIRCRAFT GAS TURBINE EN
406128
5935-00-817-3030INTERCHANGEABLE
JACK,TIP
5999-01-087-9279INTERCHANGEABLE
CONTACT,ELECTRICAL
7021-01-472-2606INTERCHANGEABLE
COMPUTER SUBASSEMBLY
105801
4820-01-516-0324INTERCHANGEABLE
LINER,VALVE
40612-8 PC NO 27
4820-01-516-0326INTERCHANGEABLE
SEAT,VALVE
1863-00
4820-01-516-0327INTERCHANGEABLE
DISK,VALVE
40612-8 PC NO 33
4820-01-516-0330INTERCHANGEABLE
DISK,VALVE
40612-8 PC NO 31
5945-01-516-1262INTERCHANGEABLE
SOLENOID,ELECTRICAL
2049-00
5360-01-516-1729INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
1844-00
5330-01-516-2888INTERCHANGEABLE
GASKET
2053-00

Frequently Asked Questions

What is NSN 4820-01-516-0320?

NSN 4820-01-516-0320 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 4820-01-516-0320?

NSN 4820-01-516-0320 has 3 cross-referenced part numbers: 1058-01 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40612-8 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40612-8 PC NO 25 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-516-0320?

There are 12 known substitutes for 4820-01-516-0320: 5935-00-257-7185, 2840-00-775-4461, 5935-00-817-3030 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40612-8 PC NO 25?

Key specifications for 40612-8 PC NO 25: Valve Size for Which Designed: 2.000 INCHES IN; Valve Design Control Activity: 55378; End Item Identification: VALVE TEMPERATURE REGULATOR; Material: STEEL CORROSION RESISTING. 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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