Lunkenheimer Co · NSN 4820-00-542-5821 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-542-5821 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-542-5821. Primary manufacturer part number: 1768.
4820-00-542-5821 — No Item Name Available illustration
Features
Valve,safety Relief — FSC 4820
Connection Type: THREADED EXTERNAL PIPE FIRST END
Disk Loading Method: SPRING
Operating Pressure: 2200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Material: COPPER ALLOY BODY
Nominal Thread Size: 0.500 INCHES FIRST END IN
Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY REPLY TO PAC ADSW
Style Designator: STRAIGHT THRU
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 4820-00-542-5821, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lunkenheimer Co. Government technical data includes 20 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-00-542-5821
Primary Part Number
1768
Item Name
Valve,safety Relief
FSC / FSG
4820 / 48 — No Item Name Available
Manufacturer
Lunkenheimer Co
Status
ACTIVE
Connection Type
THREADED EXTERNAL PIPE FIRST END
Disk Loading Method
SPRING
Operating Pressure
2200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NSN 4820-00-542-5821 is a Valve,safety Relief, manufactured by Lunkenheimer Co, classified under FSC 4820 (No Item Name Available). Status: active.
What are the part numbers for NSN 4820-00-542-5821?
NSN 4820-00-542-5821 has 1 cross-referenced part number: 1768 (Lunkenheimer Co).
What NSN replaces 4820-00-542-5821?
There are 12 known substitutes for 4820-00-542-5821: 6685-00-061-4146, 3110-00-155-9618, 6240-00-269-0964 and 9 more. Verify interchangeability with system specifications before substitution.
What are the specifications of 1768?
Key specifications for 1768: Connection Type: THREADED EXTERNAL PIPE FIRST END; Disk Loading Method: SPRING; Operating Pressure: 2200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Material: COPPER ALLOY BODY. 21 total characteristics are documented in the Federal Logistics Information System.
✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.