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NSN 4820-01-657-7638Government record, cited

Valve, Safety Relief4820-01-657-7638

NSN 4820-01-657-7638 · NIIN 016577638 · Part number EV313786
Pentair Filtration Solutions, Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 08576
Government record, cited
NSN 4820-01-657-7638 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-657-7638. Manufacturer of record part number: EV313786.
Also searched as  4820-01-657-7638 · 4820016577638 · NIIN 016577638 · 01-657-7638 · FSC 4820 Valves, Nonpowered · CAGE 08576 · EV313786
Nearby stock numbers  ·
Features
  • Valve,safety Relief — FSC 4820
  • Style Designator: STRAIGHT THRU
  • Face to Face Distance: 1.63 INCHES IN
  • Material: STEEL COMP 316 BODY
  • Opening Pressure Setting: 104.00 POUNDS PER SQUARE INCH LBS
  • 1 manufacturer part number on file
  • Manufacturer of record: Pentair Filtration Solutions, Llc
Identification
  • NSN: 4820-01-657-7638
  • NIIN: 016577638
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: EV313786
  • Manufacturer: Pentair Filtration Solutions, Llc
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-657-7638, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pentair Filtration Solutions, Llc. Government technical data includes 4 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. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-657-7638
Primary Part NumberEV313786
Item NameValve,safety Relief
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerPentair Filtration Solutions, Llc
StatusACTIVE
Style DesignatorSTRAIGHT THRU
Face to Face Distance1.63 INCHES IN
MaterialSTEEL COMP 316 BODY
Opening Pressure Setting104.00 POUNDS PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
EV313786 PRIMARY Pentair Filtration Solutions, Llc (USA)
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

Frequently Asked Questions

What is NSN 4820-01-657-7638?

NSN 4820-01-657-7638 is a Valve,safety Relief, manufactured by Pentair Filtration Solutions, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-657-7638?

NSN 4820-01-657-7638 has 1 manufacturer part number on file: EV313786 (Pentair Filtration Solutions, Llc).

What are the specifications of EV313786?

Key specifications for EV313786: Style Designator: STRAIGHT THRU; Face to Face Distance: 1.63 INCHES IN; Part Name Assigned by Controlling Agency: PRESSURE RELIEF VALVE; End Item Identification: REVERSE OSMOSIS UNIT. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-657-7638 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.
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