PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40506-902Valve,regulating,fluid Pressure

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-377-9395 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-377-9395 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-377-9395. Primary manufacturer part number: 40506-902.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Outlet Pressure Range: 5.0 TO 60.0 CAMERA MOUNT
  • Body Style: STRAIGHT THRU
  • Material Document and Classification: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
  • Material: NICKEL ALLOY STEM
  • Material Document and Classification: QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE SEAT
  • Material Document and Classification: QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE STEM
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr Flow Control Device construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-377-9395, 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 19 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
NSN4820-01-377-9395
Primary Part Number40506-902
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Outlet Pressure Range5.0 TO 60.0 CAMERA MOUNT
Body StyleSTRAIGHT THRU
Material Document and ClassificationASTM B61 ASSN STD SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
MaterialNICKEL ALLOY STEM
Material Document and ClassificationQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE SEAT
Material Document and ClassificationQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE STEM
MaterialNICKEL ALLOY AND COPPER ALLOY SEAT
Maximum Inlet Pressure RatingERR-060
End Connection Quantity2
Regulation TypeAUTOMATIC SINGLE STAGE
Valve Loading MethodSPRING
Second End Relationship with First EndIDENTICAL
First End Connection TypeUNTHREADED INTERNAL PIPE
First End Nominal Pipe Size Accommodated0.250 INCHES IN
First End Style DesignatorSOCKET
Media for Which DesignedWATER, SALT
FilterNOT INCLUDED
Flow Control DeviceDISK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
7530-01-026-4702405069 INTERCHANGEABLE
Label
Telemechanics Inc
4820-01-175-1282937-00 INTERCHANGEABLE
Stem,fluid Valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-376-271240506-905 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-376-2746931-01 INTERCHANGEABLE
Disk,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-376-2749923-01 INTERCHANGEABLE
Diaphragm,valve,flat
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
2815-01-378-7483 INTERCHANGEABLE
Screw,adjusting,valve Tappet
Cross-Reference Index
Part NumberManufacturer
40506-9 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40506-902 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40506-9 ASSEMBLY 40506-902 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
7530-01-026-4702INTERCHANGEABLE
LABEL
405069
4820-01-175-1282INTERCHANGEABLE
STEM,FLUID VALVE
937-00
4820-01-376-2712INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40506-905
4820-01-376-2746INTERCHANGEABLE
DISK,VALVE
931-01
4820-01-376-2749INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
923-01
2815-01-378-7483INTERCHANGEABLE
SCREW,ADJUSTING,VALVE TAPPET

Frequently Asked Questions

What is NSN 4820-01-377-9395?

NSN 4820-01-377-9395 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 4820-01-377-9395?

NSN 4820-01-377-9395 has 3 cross-referenced part numbers: 40506-9 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40506-902 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40506-9 ASSEMBLY 40506-902 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-377-9395?

There are 6 known substitutes for 4820-01-377-9395: 7530-01-026-4702, 4820-01-175-1282, 4820-01-376-2712 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40506-902?

Key specifications for 40506-902: Outlet Pressure Range: 5.0 TO 60.0 CAMERA MOUNT; Body Style: STRAIGHT THRU; Material Document and Classification: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE. 20 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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