PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS-4Valve,check

Oasis Construction Div Supply Nurses · NSN 4820-01-383-7014 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-383-7014 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-383-7014. Primary manufacturer part number: MS-4.
Features
  • Valve,check — FSC 4820
  • Flow Control Device: DISK
  • Connection Style: BEVELED (TUBE) ALL ENDS
  • Mounting Position: HORIZONTAL OR VERTICAL
  • Style Designator: STRAIGHT THRU
  • Connection Type: BUTT WELD TUBE ALL ENDS
  • Material: COPPER OVERALL
  • Nominal Outside Diameter Tube Accommodated: 0.250 INCHES ALL ENDS IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Overall construction
General Description

The Valve,check, cataloged under National Stock Number 4820-01-383-7014, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Oasis Construction Div Supply Nurses. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
ParameterValue
NSN4820-01-383-7014
Primary Part NumberMS-4
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerOasis Construction Div Supply Nurses
StatusACTIVE
Flow Control DeviceDISK
Connection StyleBEVELED (TUBE) ALL ENDS
Mounting PositionHORIZONTAL OR VERTICAL
Style DesignatorSTRAIGHT THRU
Connection TypeBUTT WELD TUBE ALL ENDS
MaterialCOPPER OVERALL
Nominal Outside Diameter Tube Accommodated0.250 INCHES ALL ENDS IN
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5925-00-227-03861532194 INTERCHANGEABLE
Circuit Breaker
Westinghouse Electric Corp
5920-00-280-4438 INTERCHANGEABLE
Fuse,cartridge
5120-00-293-0195 INTERCHANGEABLE
Key,socket Head Screw
3040-00-880-1230P1-25 INTERCHANGEABLE
Follower,cam
Roller Bearing Co of America, Inc Div Pic Design
3426-00-917-878613001010 INTERCHANGEABLE
Anode,plating
Sifco Applied Surface Concepts, Llc
1650-01-029-7889P60179-0030 INTERCHANGEABLE
Cylinder Assembly,actuating,line
Dri Relays Inc. Dba Dri Relays Inc
5310-01-376-6686P-125 INTERCHANGEABLE
Nut,self-Locking,cap
Alfred Conhagen, Inc.
5975-01-412-7780 INTERCHANGEABLE
Mounting Base,electrical Equipme
6625-01-440-7858P-12-5 INTERCHANGEABLE
Lead,test
Fluke Electronics Corp
5330-01-474-4938MS-4 INTERCHANGEABLE
Seal,plain
Rexnord Industries, Llc Div Aerosspace Bearing Operation
Cross-Reference Index
Part NumberManufacturer
MS-4 PRIMARY Oasis Construction Div Supply Nurses (USA)
P125 Polar Pumps Ltd (GBR)
Related Parts
5925-00-227-0386INTERCHANGEABLE
CIRCUIT BREAKER
1532194
5920-00-280-4438INTERCHANGEABLE
FUSE,CARTRIDGE
5120-00-293-0195INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
3040-00-880-1230INTERCHANGEABLE
FOLLOWER,CAM
P1-25
3426-00-917-8786INTERCHANGEABLE
ANODE,PLATING
13001010
1650-01-029-7889INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
P60179-0030
5310-01-376-6686INTERCHANGEABLE
NUT,SELF-LOCKING,CAP
P-125
5975-01-412-7780INTERCHANGEABLE
MOUNTING BASE,ELECTRICAL EQUIPME
6625-01-440-7858INTERCHANGEABLE
LEAD,TEST
P-12-5
5330-01-474-4938INTERCHANGEABLE
SEAL,PLAIN
MS-4
3770-01-575-7596INTERCHANGEABLE
SLEEVE,OBSTETRICAL,VETERINARY
P125
4730-01-664-2295INTERCHANGEABLE
COUPLING,PIPE
P1.25

Frequently Asked Questions

What is NSN 4820-01-383-7014?

NSN 4820-01-383-7014 is a Valve,check, manufactured by Oasis Construction Div Supply Nurses, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-383-7014?

NSN 4820-01-383-7014 has 2 cross-referenced part numbers: MS-4 (Oasis Construction Div Supply Nurses), P125 (Polar Pumps Ltd).

What NSN replaces 4820-01-383-7014?

There are 12 known substitutes for 4820-01-383-7014: 5925-00-227-0386, 5920-00-280-4438, 5120-00-293-0195 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS-4?

Key specifications for MS-4: Flow Control Device: DISK; Connection Style: BEVELED (TUBE) ALL ENDS; Mounting Position: HORIZONTAL OR VERTICAL; Style Designator: STRAIGHT THRU. 8 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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