PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5678Valve,safety Relief

Lincoln Industrial Corporation Div Lincoln Industrial Corporation · NSN 4820-01-655-2680 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-655-2680 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-655-2680. Primary manufacturer part number: 5678.
Features
  • Valve,safety Relief — FSC 4820
  • Style Designator: STRAIGHT THRU
  • Connection Type: THREADED EXTERNAL PIPE FIRST END
  • Face to Face Distance: 0.50 INCHES IN
  • Nominal Thread Size: 0.125 INCHES FIRST END IN
  • Flow Control Device: BALL
  • Connection Style: PLAIN (SCREW-IN CARTRIDGE) FIRST END
  • Thread Series Designator: PTF-SPL SHORT FIRST END
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-655-2680, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lincoln Industrial Corporation Div Lincoln Industrial Corporation. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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: Active.

Technical Specifications
ParameterValue
NSN4820-01-655-2680
Primary Part Number5678
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLincoln Industrial Corporation Div Lincoln Industrial Corporation
StatusACTIVE
Style DesignatorSTRAIGHT THRU
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Face to Face Distance0.50 INCHES IN
Nominal Thread Size0.125 INCHES FIRST END IN
Flow Control DeviceBALL
Connection StylePLAIN (SCREW-IN CARTRIDGE) FIRST END
Thread Series DesignatorPTF-SPL SHORT FIRST END
Adjustable Pressure Range+7.50 TO 15.00 POUNDS PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5960-00-230-5262 INTERCHANGEABLE
Electron Tube
5360-00-246-76124908512-9 INTERCHANGEABLE
Spring,helical,compression
Kalmar AC Inc
2910-00-287-1912 INTERCHANGEABLE
Filter Element,fluid
5935-00-615-15245678 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5950-01-011-926456-78 INTERCHANGEABLE
Transformer,power
General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations
4330-01-618-9963 INTERCHANGEABLE
Filter Assembly,fluid
Cross-Reference Index
Part NumberManufacturer
5678 PRIMARY Lincoln Industrial Corporation Div Lincoln Industrial Corporation (USA)
Related Parts
5960-00-230-5262INTERCHANGEABLE
ELECTRON TUBE
5360-00-246-7612INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4908512-9
2910-00-287-1912INTERCHANGEABLE
FILTER ELEMENT,FLUID
5935-00-615-1524INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5678
5950-01-011-9264INTERCHANGEABLE
TRANSFORMER,POWER
56-78
4330-01-618-9963INTERCHANGEABLE
FILTER ASSEMBLY,FLUID

Frequently Asked Questions

What is NSN 4820-01-655-2680?

NSN 4820-01-655-2680 is a Valve,safety Relief, manufactured by Lincoln Industrial Corporation Div Lincoln Industrial Corporation, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-655-2680?

NSN 4820-01-655-2680 has 1 cross-referenced part number: 5678 (Lincoln Industrial Corporation Div Lincoln Industrial Corporation).

What NSN replaces 4820-01-655-2680?

There are 6 known substitutes for 4820-01-655-2680: 5960-00-230-5262, 5360-00-246-7612, 2910-00-287-1912 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5678?

Key specifications for 5678: Style Designator: STRAIGHT THRU; Connection Type: THREADED EXTERNAL PIPE FIRST END; Face to Face Distance: 0.50 INCHES IN; Part Name Assigned by Controlling Agency: PRESSURE RELIEF VALVE. 9 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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