PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

546-00Stem,fluid Valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-286-9735 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-286-9735 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-286-9735. Primary manufacturer part number: 546-00.
Features
  • Stem,fluid Valve — FSC 4820
  • Stem Actuating End Type: ROUNDED
  • Valve Model Number for Which Designed: 1 IN STYL G IN
  • Valve Type for Which Designed: REGULATOR
  • Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
  • Valve Size for Which Designed: 1.000 INCHES IN
  • Material: NICKEL ALLOY R-405
  • 3 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy R-405 construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-286-9735, 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 6 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-286-9735
Primary Part Number546-00
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Stem Actuating End TypeROUNDED
Valve Model Number for Which Designed1 IN STYL G IN
Valve Type for Which DesignedREGULATOR
Material Document and ClassificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
Valve Size for Which Designed1.000 INCHES IN
MaterialNICKEL ALLOY R-405
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5340-00-299-0638 INTERCHANGEABLE
Hanger,pipe
2990-00-337-0015040564 INTERCHANGEABLE
Sleeve Assembly,term Inal
Woodward, Inc.
5977-00-552-1986 INTERCHANGEABLE
Brush,electrical Contact
2925-00-806-797240355 INTERCHANGEABLE
Vibrator,ignition Coil
Unison Industries Llc
5950-00-892-8312SM-C-450410 INTERCHANGEABLE
Reactor
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4820-01-057-618640355 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-286-9743463-04 INTERCHANGEABLE
Cap,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
1550-01-562-805254600 INTERCHANGEABLE
Unmanned Aircraft
Aerovironment, Inc. Dba Aerovironment Inc
5310-01-564-38743011415 INTERCHANGEABLE
Washer,flat
Relli Technology, Inc Dba Relli Technology Inc
1055-01-706-952854600 INTERCHANGEABLE
Launcher,practice,subcaliber Amm
Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc
Cross-Reference Index
Part NumberManufacturer
40355-1 PIECE 32 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
546-00 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40355 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5340-00-299-0638INTERCHANGEABLE
HANGER,PIPE
2990-00-337-0015INTERCHANGEABLE
SLEEVE ASSEMBLY,TERM INAL
040564
5977-00-552-1986INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
2925-00-806-7972INTERCHANGEABLE
VIBRATOR,IGNITION COIL
40355
5950-00-892-8312INTERCHANGEABLE
REACTOR
SM-C-450410
4820-01-057-6186INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40355
4820-01-286-9743INTERCHANGEABLE
CAP,VALVE
463-04
1550-01-562-8052INTERCHANGEABLE
UNMANNED AIRCRAFT
54600
5310-01-564-3874INTERCHANGEABLE
WASHER,FLAT
3011415
1055-01-706-9528INTERCHANGEABLE
LAUNCHER,PRACTICE,SUBCALIBER AMM
54600

Frequently Asked Questions

What is NSN 4820-01-286-9735?

NSN 4820-01-286-9735 is a Stem,fluid 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 4820-01-286-9735?

NSN 4820-01-286-9735 has 3 cross-referenced part numbers: 40355-1 PIECE 32 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 546-00 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40355 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-286-9735?

There are 10 known substitutes for 4820-01-286-9735: 5340-00-299-0638, 2990-00-337-0015, 5977-00-552-1986 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 546-00?

Key specifications for 546-00: Stem Actuating End Type: ROUNDED; Valve Model Number for Which Designed: 1 IN STYL G IN; Valve Type for Which Designed: REGULATOR; Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE. 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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