PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14511Valve,safety Relief

Clayton Manufacturing Company · NSN 4820-00-877-2776 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-877-2776 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-877-2776. Primary manufacturer part number: 14511.
Features
  • Valve,safety Relief — FSC 4820
  • Connection Type: THREADED EXTERNAL PIPE FIRST END
  • Opening Pressure Setting: 5.0 POUNDS PER SQUARE INCH LBS
  • Thread Direction: RIGHT-HAND SECOND END
  • Operating Pressure: 5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Material: COPPER ALLOY BODY
  • Thread Direction: RIGHT-HAND FIRST END
  • Flow Control Device: DISK
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 4820-00-877-2776, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Clayton Manufacturing Company. Government technical data includes 19 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-877-2776
Primary Part Number14511
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerClayton Manufacturing Company
StatusCANCELLED
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Opening Pressure Setting5.0 POUNDS PER SQUARE INCH LBS
Thread DirectionRIGHT-HAND SECOND END
Operating Pressure5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MaterialCOPPER ALLOY BODY
Thread DirectionRIGHT-HAND FIRST END
Flow Control DeviceDISK
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Thread Series DesignatorNPT SECOND END
Connection StylePLAIN,OPTIONAL END(PIPE) SECOND END
Valve Operation MethodAUTOMATIC
Thread Series DesignatorNPT FIRST END
Nominal Thread Size0.750 INCHES SECOND END IN
Connection TypeTHREADED INTERNAL PIPE SECOND END
Connection StyleGASKET SEAL (PIPE) FIRST END
Style DesignatorANGLE
Valve Discharge Flow Rate1.0 GALLONS PER MINUTE
Nominal Thread Size0.750 INCHES FIRST END IN
Adjustable Pressure Range+5.0 TO 25.0 POUNDS PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
6105-00-607-0173FPE25-79-2 INTERCHANGEABLE
Motor,control
Kearfott Corp Div Kearfott Corporation
5935-00-818-7958 INTERCHANGEABLE
Strap Nut,plug-in Electronic Com
5365-00-835-18451451-1 INTERCHANGEABLE
Spacer,sleeve
Drs Signal Solutions, Inc.
5330-00-968-027614511 INTERCHANGEABLE
Gasket
Napco International Llc Dba Napco International Inc
5310-01-155-334714511 INTERCHANGEABLE
Nut
Dayton-Granger, Inc.
6240-01-344-545455PAR/FL/SS/120-130V INTERCHANGEABLE
Lamp,incandescent
Gte Products Corp Sylvania Miniature Lighting Div
5985-01-362-1615 INTERCHANGEABLE
Antenna Element
Cross-Reference Index
Part NumberManufacturer
14511 PRIMARY Clayton Manufacturing Company (USA)
14511 PRIMARY Imi Cash Valve Inc (USA)
Related Parts
6105-00-607-0173INTERCHANGEABLE
MOTOR,CONTROL
FPE25-79-2
5935-00-818-7958INTERCHANGEABLE
STRAP NUT,PLUG-IN ELECTRONIC COM
5365-00-835-1845INTERCHANGEABLE
SPACER,SLEEVE
1451-1
5330-00-968-0276INTERCHANGEABLE
GASKET
14511
5310-01-155-3347INTERCHANGEABLE
NUT
14511
6240-01-344-5454INTERCHANGEABLE
LAMP,INCANDESCENT
55PAR/FL/SS/120-130V
5985-01-362-1615INTERCHANGEABLE
ANTENNA ELEMENT

Frequently Asked Questions

What is NSN 4820-00-877-2776?

NSN 4820-00-877-2776 is a Valve,safety Relief, manufactured by Clayton Manufacturing Company, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-877-2776?

NSN 4820-00-877-2776 has 2 cross-referenced part numbers: 14511 (Clayton Manufacturing Company), 14511 (Imi Cash Valve Inc).

What NSN replaces 4820-00-877-2776?

There are 7 known substitutes for 4820-00-877-2776: 6105-00-607-0173, 5935-00-818-7958, 5365-00-835-1845 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14511?

Key specifications for 14511: Connection Type: THREADED EXTERNAL PIPE FIRST END; Opening Pressure Setting: 5.0 POUNDS PER SQUARE INCH LBS; Thread Direction: RIGHT-HAND SECOND END; Operating Pressure: 5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-877-2776 still in active supply?

NSN 4820-00-877-2776 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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