PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6186Valve,safety Relief

Anderson Greenwood Lp Dba Anderson Greenwood Crosby · NSN 4820-00-541-2755 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-541-2755 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-541-2755. Primary manufacturer part number: 6186.
Features
  • Valve,safety Relief — FSC 4820
  • Valve Discharge Flow Rate: 32.0 CUBIC FEET PER MINUTE
  • Flow Control Device: DISK
  • Valve Operation Method: AUTOMATIC OR MANUAL
  • Connection Type: THREADED EXTERNAL PIPE FIRST END
  • Nominal Pipe Size Accommodated: 1.000 INCHES FIRST END IN
  • Thread Direction: RIGHT-HAND FIRST END
  • Connection Style: PLAIN (PIPE) FIRST END
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Body construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-541-2755, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-541-2755
Primary Part Number6186
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAnderson Greenwood Lp Dba Anderson Greenwood Crosby
StatusCANCELLED
Valve Discharge Flow Rate32.0 CUBIC FEET PER MINUTE
Flow Control DeviceDISK
Valve Operation MethodAUTOMATIC OR MANUAL
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Nominal Pipe Size Accommodated1.000 INCHES FIRST END IN
Thread DirectionRIGHT-HAND FIRST END
Connection StylePLAIN (PIPE) FIRST END
MaterialCOPPER ALLOY BODY
Opening Pressure Setting15.0 POUNDS PER SQUARE INCH LBS
Nominal Thread Size1.000 INCHES FIRST END IN
Style DesignatorSTRAIGHT THRU
Media for Which DesignedAIR FIRST RESPONSE
Thread Series DesignatorNPT FIRST END
Operating Pressure160.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MaterialSTEEL CORROSION RESISTING STEM
MaterialCOPPER ALLOY FLOW CONTROL DEVICE
Disk Loading MethodSPRING
Features ProvidedPRESSURE TIGHT OUTLET SIDE
MaterialCOPPER ALLOY SEAT
Media for Which DesignedGAS, NATURAL SECOND RESPONSE
Maximum Operating Temp400.0 FAHRENHEIT SINGLE RESPONSE DEGF
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
1005-00-019-79036186 INTERCHANGEABLE
Catch,magazine
Smith & Wesson Sales Company
3110-00-142-428710958 INTERCHANGEABLE
Bearing,ball,airframe
Cae Usa Inc.
5330-00-172-9486 INTERCHANGEABLE
Seal,plain Encased
5960-00-504-8395 INTERCHANGEABLE
Electron Tube
6625-00-604-2638 INTERCHANGEABLE
Voltmeter
6650-01-466-94806186 INTERCHANGEABLE
Stage Micrometer,microscope
Bioquip Products, Inc.
Cross-Reference Index
Part NumberManufacturer
86 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
6186 PRIMARY Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
1005-00-019-7903INTERCHANGEABLE
CATCH,MAGAZINE
6186
3110-00-142-4287INTERCHANGEABLE
BEARING,BALL,AIRFRAME
10958
5330-00-172-9486INTERCHANGEABLE
SEAL,PLAIN ENCASED
5960-00-504-8395INTERCHANGEABLE
ELECTRON TUBE
6625-00-604-2638INTERCHANGEABLE
VOLTMETER
6650-01-466-9480INTERCHANGEABLE
STAGE MICROMETER,MICROSCOPE
6186

Frequently Asked Questions

What is NSN 4820-00-541-2755?

NSN 4820-00-541-2755 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-541-2755?

NSN 4820-00-541-2755 has 2 cross-referenced part numbers: 86 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 6186 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

What NSN replaces 4820-00-541-2755?

There are 6 known substitutes for 4820-00-541-2755: 1005-00-019-7903, 3110-00-142-4287, 5330-00-172-9486 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6186?

Key specifications for 6186: Valve Discharge Flow Rate: 32.0 CUBIC FEET PER MINUTE; Flow Control Device: DISK; Valve Operation Method: AUTOMATIC OR MANUAL; Connection Type: THREADED EXTERNAL PIPE FIRST END. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-541-2755 still in active supply?

NSN 4820-00-541-2755 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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