NSN 4820-01-456-0510 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-456-0510. Manufacturer of record part number: 20141E01S0045.
Maximum Operating Temp: 150.0 FAHRENHEIT SINGLE RESPONSE DEGF
Disk Loading Method: SPRING
Material: STEEL BODY
Opening Pressure Setting: 112.0 POUNDS PER SQUARE INCH LBS
Valve Operation Method: AUTOMATIC
1 manufacturer part number on file
Identification
NSN: 4820-01-456-0510
NIIN: 014560510
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 20141E01S0045
Manufacturer: Anderson Greenwood Lp Dba Anderson Greenwood Crosby
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-456-0510, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-456-0510
Primary Part Number
20141E01S0045
Item Name
Valve,safety Relief
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Reference documents
Reference
Meaning
20141
5/9Secondary reference
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
20141
5/1Secondary reference
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
MILV20065TYCOMPD39T45PSIFLGE6
C/1Advisory reference — outside the item-of-supply concept
U.S. Government activity
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Related Parts in Valves
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
8171E-1/4HS2
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
D559A3M2
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-456-0510?
NSN 4820-01-456-0510 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-456-0510?
NSN 4820-01-456-0510 has 1 manufacturer part number on file: 20141E01S0045 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
What are the specifications of 20141E01S0045?
Key specifications for 20141E01S0045: Flow Control Device: DISK; Maximum Operating Temp: 150.0 FAHRENHEIT SINGLE RESPONSE DEGF; Disk Loading Method: SPRING; Special Features: PART NUMBER MILV20065TY2COMPD39T45SIFLGE6 IDENTIFIES ASBESTOS FREE MATERIAL. 6 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-456-0510 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.