PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2745CPValve,safety Relief

Naval Inventory Control Point Mechanicsburg · NSN 4820-00-799-7205 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-799-7205 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-799-7205. Primary manufacturer part number: 2745CP.
Features
  • Valve,safety Relief — FSC 4820
  • Valve Operation Method: AUTOMATIC
  • Flow Control Device: POPPET
  • Disk Loading Method: SPRING
  • Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
  • Material: STEEL CORROSION RESISTING STEM
  • Style Designator: ANGLE
  • Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Stem construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-799-7205, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN4820-00-799-7205
Primary Part Number2745CP
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Valve Operation MethodAUTOMATIC
Flow Control DevicePOPPET
Disk Loading MethodSPRING
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
MaterialSTEEL CORROSION RESISTING STEM
Style DesignatorANGLE
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
Thread DirectionRIGHT-HAND FIRST END
Adjustable Pressure Range+2920.0 TO 3575.0 POUNDS PER SQUARE INCH LBS
Operating Pressure10000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Series DesignatorNPT FIRST END
Thread Quantity Per Inch20 FIRST END
Nominal Thread Size0.500 INCHES FIRST END IN
MaterialSTEEL CORROSION RESISTING SEAT
Nominal Pipe Size Accommodated0.500 INCHES FIRST END IN
Connection StylePLAIN,OPTIONAL END(PIPE) FIRST END
Connection TypeTHREADED INTERNAL PIPE FIRST END
MaterialCOPPER ALLOY BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2940-00-104-44793S4745 INTERCHANGEABLE
Filter Element,intake Air Cleane
Caterpillar Inc Div Caterpillar Defense
5330-00-196-5330 INTERCHANGEABLE
Packing,preformed
5310-00-316-522200419 INTERCHANGEABLE
Nut,sleeve
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5985-00-338-0028 INTERCHANGEABLE
Coupler,transmission Line
2520-00-737-7312202745 INTERCHANGEABLE
Cover
Clark Material Handling Company
6685-00-982-28432745 INTERCHANGEABLE
Pyrometer,indicating
Honeywell Inc Process Control Div
5940-01-027-4669A-250 INTERCHANGEABLE
Terminal,quick Disconnect
Abb Installation Products Inc
6105-01-033-6610 INTERCHANGEABLE
Motor Assembly
6130-01-045-0003 INTERCHANGEABLE
Power Supply
5935-01-137-64182745 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
Cross-Reference Index
Part NumberManufacturer
2745CP Naval Inventory Control Point Mechanicsburg (USA)
2745 Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris (USA)
6383C Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris (USA)
Related Parts
2940-00-104-4479INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
3S4745
5330-00-196-5330INTERCHANGEABLE
PACKING,PREFORMED
5310-00-316-5222INTERCHANGEABLE
NUT,SLEEVE
00419
5985-00-338-0028INTERCHANGEABLE
COUPLER,TRANSMISSION LINE
2520-00-737-7312INTERCHANGEABLE
COVER
202745
6685-00-982-2843INTERCHANGEABLE
PYROMETER,INDICATING
2745
5940-01-027-4669INTERCHANGEABLE
TERMINAL,QUICK DISCONNECT
A-250
6105-01-033-6610INTERCHANGEABLE
MOTOR ASSEMBLY
6130-01-045-0003INTERCHANGEABLE
POWER SUPPLY
5935-01-137-6418INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2745
5970-01-330-2203INTERCHANGEABLE
INSULATOR,WASHER
2745
3950-01-472-8331INTERCHANGEABLE
TRUCK SMALL BOAT
2745

Frequently Asked Questions

What is NSN 4820-00-799-7205?

NSN 4820-00-799-7205 is a Valve,safety Relief, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-799-7205?

NSN 4820-00-799-7205 has 3 cross-referenced part numbers: 2745CP (Naval Inventory Control Point Mechanicsburg), 2745 (Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris), 6383C (Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris).

What NSN replaces 4820-00-799-7205?

There are 12 known substitutes for 4820-00-799-7205: 2940-00-104-4479, 5330-00-196-5330, 5310-00-316-5222 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2745CP?

Key specifications for 2745CP: Valve Operation Method: AUTOMATIC; Flow Control Device: POPPET; Disk Loading Method: SPRING; Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE. 18 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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