PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ML14101S0010Valve,safety Relief

Anderson Greenwood Lp Dba Anderson Greenwood Crosby · NSN 4820-00-287-3017 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-287-3017 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-287-3017. Primary manufacturer part number: ML14101S0010.
Features
  • Valve,safety Relief — FSC 4820
  • Nominal Thread Size: 0.500 INCHES SECOND END IN
  • Bonnet Attachment Method: INTEGRAL
  • Connection Style: PLAIN (PIPE) SECOND END
  • Connection Style: PLAIN,OPTIONAL END(PIPE) FIRST END
  • Nominal Pipe Size Accommodated: 0.500 INCHES SECOND END IN
  • Connection Type: THREADED INTERNAL PIPE FIRST END
  • Disk Loading Method: SPRING
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 4820-00-287-3017, 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 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-287-3017
Primary Part NumberML14101S0010
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAnderson Greenwood Lp Dba Anderson Greenwood Crosby
StatusACTIVE
Nominal Thread Size0.500 INCHES SECOND END IN
Bonnet Attachment MethodINTEGRAL
Connection StylePLAIN (PIPE) SECOND END
Connection StylePLAIN,OPTIONAL END(PIPE) FIRST END
Nominal Pipe Size Accommodated0.500 INCHES SECOND END IN
Connection TypeTHREADED INTERNAL PIPE FIRST END
Disk Loading MethodSPRING
Adjustable Pressure Range+11.0 TO 15.0 POUNDS PER SQUARE INCH LBS
Valve Discharge Flow Rate86.0 POUNDS PER HOUR LBS
Valve Operation MethodAUTOMATIC
Thread DirectionRIGHT-HAND SECOND END
Maximum Operating Temp425.0 FAHRENHEIT SINGLE RESPONSE DEGF
Material Document and ClassificationQQ-C-390,ALLOY B5/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
Nominal Thread Size0.500 INCHES FIRST END IN
Thread Series DesignatorNPT SECOND END
Style DesignatorANGLE
Media for Which DesignedSTEAM SINGLE RESPONSE
MaterialCOPPER ALLOY OVERALL
Operating Pressure200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Pipe Size Accommodated0.500 INCHES FIRST END IN
Bonnet TypeINSIDE SPRING
Material Document and ClassificationQQ-C-390,ALLOY B5/D/ FED SPEC SINGLE MATERIAL RESPONSE SEAT
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Thread DirectionRIGHT-HAND FIRST END
Flow Control DeviceDISK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5133-00-189-9278 INTERCHANGEABLE
Drill,twist
6625-00-691-650620679 INTERCHANGEABLE
Air Cell Assy
Cec Vibration Products, Llc Dba Cec Vibrations Products
5330-01-151-7193 INTERCHANGEABLE
Packing
2610-01-625-079020679 INTERCHANGEABLE
Tire,pneumatic,vehicular
Michelin North America, Inc Dba Michelin North America, Inc
Cross-Reference Index
Part NumberManufacturer
ML14101S0010 PRIMARY Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
SL4965-94 Westinghouse Electric Corp (USA)
SL4965-94 Westinghouse Electric Corp Control Business Unit
1/2MXF1250CID882111551DWGML141 PRIMARY Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
SJ3540PC94 Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA)
SJ3540-94 Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA)
1/2MXF1250CID882111551ML141 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20679 Crane Co Div Valve Div (USA)
NSJ5560DPC131 Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA)
Related Parts
5133-00-189-9278INTERCHANGEABLE
DRILL,TWIST
6625-00-691-6506INTERCHANGEABLE
AIR CELL ASSY
20679
5330-01-151-7193INTERCHANGEABLE
PACKING
2610-01-625-0790INTERCHANGEABLE
TIRE,PNEUMATIC,VEHICULAR
20679

Frequently Asked Questions

What is NSN 4820-00-287-3017?

NSN 4820-00-287-3017 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-287-3017?

NSN 4820-00-287-3017 has 9 cross-referenced part numbers: ML14101S0010 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), SL4965-94 (Westinghouse Electric Corp), SL4965-94 (Westinghouse Electric Corp Control Business Unit), 1/2MXF1250CID882111551DWGML141 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), SJ3540PC94 (Amec Foster Wheeler North America Corp. Dba Foster Wheeler) and 4 more.

What NSN replaces 4820-00-287-3017?

There are 4 known substitutes for 4820-00-287-3017: 5133-00-189-9278, 6625-00-691-6506, 5330-01-151-7193 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ML14101S0010?

Key specifications for ML14101S0010: Nominal Thread Size: 0.500 INCHES SECOND END IN; Bonnet Attachment Method: INTEGRAL; Connection Style: PLAIN (PIPE) SECOND END; Connection Style: PLAIN,OPTIONAL END(PIPE) FIRST END. 25 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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