PartsTable TECHNICAL DATA SHEET
NSN 4820-01-631-7937Government record, cited

Valve, Linear, Directional Control4820-01-631-7937

NSN 4820-01-631-7937 · NIIN 016317937 · Part number PS-250-40-MO
Elwood Corporation Dba Fluid Power Group · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 0DPG4
Government record, cited
NSN 4820-01-631-7937 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-631-7937. Manufacturer of record part number: PS-250-40-MO.
Also searched as  4820-01-631-7937 · 4820016317937 · NIIN 016317937 · 01-631-7937 · FSC 4820 Valves, Nonpowered · CAGE 0DPG4 · PS-250-40-MO
Nearby stock numbers  ·
Features
  • Valve,linear,directional Control — FSC 4820
  • Spool Quantity: 1
  • Body Material: STEEL CORROSION RESISTING
  • Valve Operation Method: MANUAL
  • Spool Position Quantity: 3
  • 1 manufacturer part number on file
  • Manufacturer of record: Elwood Corporation Dba Fluid Power Group
Identification
  • NSN: 4820-01-631-7937
  • NIIN: 016317937
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: PS-250-40-MO
  • Manufacturer: Elwood Corporation Dba Fluid Power Group
General Description

The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-631-7937, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Elwood Corporation Dba Fluid Power Group. 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
NSN4820-01-631-7937
Primary Part NumberPS-250-40-MO
Item NameValve,linear,directional Control
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerElwood Corporation Dba Fluid Power Group
StatusACTIVE
Spool Quantity1
Body MaterialSTEEL CORROSION RESISTING
Valve Operation MethodMANUAL
Spool Position Quantity3
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
PS-250-40-MO PRIMARY Elwood Corporation Dba Fluid Power Group (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 4820-01-631-7937?

NSN 4820-01-631-7937 is a Valve,linear,directional Control, manufactured by Elwood Corporation Dba Fluid Power Group, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-631-7937?

NSN 4820-01-631-7937 has 1 manufacturer part number on file: PS-250-40-MO (Elwood Corporation Dba Fluid Power Group).

What are the specifications of PS-250-40-MO?

Key specifications for PS-250-40-MO: Spool Quantity: 1; Body Material: STEEL CORROSION RESISTING; Valve Operation Method: MANUAL; Spool Position Quantity: 3. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-631-7937 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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