PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3835-27Valve,safety Relief

Kahn and Company, Incorporated · NSN 4820-00-005-7394 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-005-7394 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-005-7394. Primary manufacturer part number: 3835-27.
Features
  • Valve,safety Relief — FSC 4820
  • Thread Series Designator: NPT FIRST END
  • Bonnet Type: INSIDE SPRING
  • Thread Direction: RIGHT-HAND FIRST END
  • Maximum Operating Temp: 300.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Valve Discharge Flow Rate: 82.0 CUBIC FEET PER MINUTE
  • Valve Operation Method: AUTOMATIC
  • Media for Which Designed: AIR SINGLE RESPONSE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Overall construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-005-7394, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Kahn and Company, Incorporated. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN4820-00-005-7394
Primary Part Number3835-27
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerKahn and Company, Incorporated
StatusACTIVE
Thread Series DesignatorNPT FIRST END
Bonnet TypeINSIDE SPRING
Thread DirectionRIGHT-HAND FIRST END
Maximum Operating Temp300.0 FAHRENHEIT SINGLE RESPONSE DEGF
Valve Discharge Flow Rate82.0 CUBIC FEET PER MINUTE
Valve Operation MethodAUTOMATIC
Media for Which DesignedAIR SINGLE RESPONSE
Nominal Thread Size0.250 INCHES FIRST END IN
Operating Pressure225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MaterialCOPPER ALLOY OVERALL
Style DesignatorANGLE
Opening Pressure Setting150.0 POUNDS PER SQUARE INCH LBS
Bonnet Attachment MethodINTEGRAL
Disk Loading MethodSPRING
Connection StylePLAIN (PIPE) FIRST END
Flow Control DevicePISTON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-027-0994 INTERCHANGEABLE
Valve,safety Relief
4940-00-181-7590 INTERCHANGEABLE
Gun,air Blow
5325-00-386-179716WL2724 INTERCHANGEABLE
Grommet,nonmetallic
Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.)
4820-00-585-7859 INTERCHANGEABLE
Valve,safety Relief
3415-00-804-171748A INTERCHANGEABLE
Grinding Machine,carbide Tool Bi
Textron Inc
4820-00-812-900948A1-4IN205PSI INTERCHANGEABLE
Valve,safety Relief
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
4820-00-836-2950 INTERCHANGEABLE
Valve,safety Relief
4820-00-837-8183 INTERCHANGEABLE
Valve,safety Relief
4820-00-837-8184115-4-50 INTERCHANGEABLE
Valve,safety Relief
Mid-State Sales, Inc. Div Defense Products Group
4820-00-840-428648A1-4IN220PSI INTERCHANGEABLE
Valve,safety Relief
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
Cross-Reference Index
Part NumberManufacturer
48A Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
3835-27 PRIMARY Kahn and Company, Incorporated (USA)
Related Parts
4820-00-027-0994INTERCHANGEABLE
VALVE,SAFETY RELIEF
4940-00-181-7590INTERCHANGEABLE
GUN,AIR BLOW
5325-00-386-1797INTERCHANGEABLE
GROMMET,NONMETALLIC
16WL2724
4820-00-585-7859INTERCHANGEABLE
VALVE,SAFETY RELIEF
3415-00-804-1717INTERCHANGEABLE
GRINDING MACHINE,CARBIDE TOOL BI
48A
4820-00-812-9009INTERCHANGEABLE
VALVE,SAFETY RELIEF
48A1-4IN205PSI
4820-00-836-2950INTERCHANGEABLE
VALVE,SAFETY RELIEF
4820-00-837-8183INTERCHANGEABLE
VALVE,SAFETY RELIEF
4820-00-837-8184INTERCHANGEABLE
VALVE,SAFETY RELIEF
115-4-50
4820-00-840-4286INTERCHANGEABLE
VALVE,SAFETY RELIEF
48A1-4IN220PSI
4820-00-844-6849INTERCHANGEABLE
VALVE,SAFETY RELIEF
48A1-4IN75PSI
4140-00-936-3147INTERCHANGEABLE
BLOWER,AIR BARRIER
MODEL 48 STANDARD METAL HOUSING

Frequently Asked Questions

What is NSN 4820-00-005-7394?

NSN 4820-00-005-7394 is a Valve,safety Relief, manufactured by Kahn and Company, Incorporated, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-005-7394?

NSN 4820-00-005-7394 has 2 cross-referenced part numbers: 48A (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 3835-27 (Kahn and Company, Incorporated).

What NSN replaces 4820-00-005-7394?

There are 12 known substitutes for 4820-00-005-7394: 4820-00-027-0994, 4940-00-181-7590, 5325-00-386-1797 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3835-27?

Key specifications for 3835-27: Thread Series Designator: NPT FIRST END; Bonnet Type: INSIDE SPRING; Thread Direction: RIGHT-HAND FIRST END; Maximum Operating Temp: 300.0 FAHRENHEIT SINGLE RESPONSE DEGF. 16 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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