PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40399-910Valve,regulating,fluid Pressure

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-466-2485 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-466-2485 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-466-2485. Primary manufacturer part number: 40399-910.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Body Style: STRAIGHT THRU
  • Material: NICKEL ALLOY STEM
  • Valve Loading Method: SPRING
  • First End Style Designator: REDUCED SOCKET WITH ONE BRAZING RING
  • First End Connection Type: UNTHREADED INTERNAL PIPE
  • Flow Control Device: DISK
  • Regulation Type: AUTOMATIC SINGLE STAGE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Stem construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-466-2485, 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 15 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-466-2485
Primary Part Number40399-910
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Body StyleSTRAIGHT THRU
MaterialNICKEL ALLOY STEM
Valve Loading MethodSPRING
First End Style DesignatorREDUCED SOCKET WITH ONE BRAZING RING
First End Connection TypeUNTHREADED INTERNAL PIPE
Flow Control DeviceDISK
Regulation TypeAUTOMATIC SINGLE STAGE
FilterNOT INCLUDED
MaterialNICKEL ALLOY AND COPPER ALLOY SEAT
Maximum Inlet Pressure RatingERR-060
Outlet Pressure Accuracy RatingERR-060
Second End Relationship with First EndIDENTICAL
First End Nominal Pipe Size Accommodated1.000 INCHES IN
End Connection Quantity2
Media for Which DesignedWATER, SALT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
1630-00-672-441040-399 INTERCHANGEABLE
Control Box Assembly,anti-Skid D
Hydro-Aire Aerospace Corp
4820-01-244-536640399-903 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-256-361340399-901 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-464-445140399-911 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-467-549740399-410 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5340-01-471-703440399 INTERCHANGEABLE
Snap Hook
Lynn Electronics Llc
Cross-Reference Index
Part NumberManufacturer
40399 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40399-910 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40399-9 ASSY 40399-910 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
1630-00-672-4410INTERCHANGEABLE
CONTROL BOX ASSEMBLY,ANTI-SKID D
40-399
4820-01-244-5366INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40399-903
4820-01-256-3613INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40399-901
4820-01-464-4451INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40399-911
4820-01-467-5497INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40399-410
5340-01-471-7034INTERCHANGEABLE
SNAP HOOK
40399

Frequently Asked Questions

What is NSN 4820-01-466-2485?

NSN 4820-01-466-2485 is a Valve,regulating,fluid Pressure, 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 4820-01-466-2485?

NSN 4820-01-466-2485 has 3 cross-referenced part numbers: 40399 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40399-910 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40399-9 ASSY 40399-910 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-466-2485?

There are 6 known substitutes for 4820-01-466-2485: 1630-00-672-4410, 4820-01-244-5366, 4820-01-256-3613 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40399-910?

Key specifications for 40399-910: Body Style: STRAIGHT THRU; Material: NICKEL ALLOY STEM; Valve Loading Method: SPRING; First End Style Designator: REDUCED SOCKET WITH ONE BRAZING RING. 17 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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