PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS-3-100 ITEM 16Piston,valve

Oil Air Hydraulics Inc. · NSN 4820-01-323-7321 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-323-7321 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-323-7321. Primary manufacturer part number: MS-3-100 ITEM 16.
Features
  • Piston,valve — FSC 4820
  • 4 verified cross-references
  • Primary manufacturer: Oil Air Hydraulics Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Piston,valve, cataloged under National Stock Number 4820-01-323-7321, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Oil Air Hydraulics Inc.. This item has 4 commercial cross-references 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.

Catalog Facts
Item NamePiston,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersOil Air Hydraulics Inc. (CAGE 62955)
Technical Specifications
ParameterValue
NSN4820-01-323-7321
Primary Part NumberMS-3-100 ITEM 16
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerOil Air Hydraulics Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5133-00-189-9278 INTERCHANGEABLE
Drill,twist
4730-00-215-1133V1099A INTERCHANGEABLE
Strainer Element,sediment
Griswold Industries Dba Cla-Val Co
5950-00-270-1113860821 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon
5120-00-900-610911505 INTERCHANGEABLE
Hammer,hand
Vaughan & Bushnell Manufacturing Company
6240-01-063-764811405 INTERCHANGEABLE
Lamp,incandescent
American Optical Co
4940-01-117-9043411405-001 INTERCHANGEABLE
Adapter
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
3695-01-176-4314411405 INTERCHANGEABLE
Underlayment,window
Econoline Mfg Inc
4820-01-323-6180MS-3-100 ITEM 10 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Oil Air Hydraulics Inc.
4330-01-323-736211-407-A-D INTERCHANGEABLE
Ring,control,fluid Flow
Oil Air Hydraulics Inc.
7025-01-374-960311405 INTERCHANGEABLE
Transport,magnetic Tape
Maynard Electronics Inc
Cross-Reference Index
Part NumberManufacturer
MS-3-100 ITEM 16 PRIMARY Oil Air Hydraulics Inc. (USA)
11-405 Oil Air Hydraulics Inc. (USA)
11-405-SS Oil Air Hydraulics Inc. (USA)
MS-3-100 Oil Air Hydraulics Inc. (USA)
Related Parts
5133-00-189-9278INTERCHANGEABLE
DRILL,TWIST
4730-00-215-1133INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
V1099A
5950-00-270-1113INTERCHANGEABLE
TRANSFORMER,POWER
860821
5120-00-900-6109INTERCHANGEABLE
HAMMER,HAND
11505
6240-01-063-7648INTERCHANGEABLE
LAMP,INCANDESCENT
11405
4940-01-117-9043INTERCHANGEABLE
ADAPTER
411405-001
3695-01-176-4314INTERCHANGEABLE
UNDERLAYMENT,WINDOW
411405
4820-01-323-6180INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
MS-3-100 ITEM 10
4330-01-323-7362INTERCHANGEABLE
RING,CONTROL,FLUID FLOW
11-407-A-D
7025-01-374-9603INTERCHANGEABLE
TRANSPORT,MAGNETIC TAPE
11405
5935-01-533-8212INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
MS3100F18-4P
4930-01-561-6352INTERCHANGEABLE
FILTER-LUBRICATOR ASSEMBLY,AIRLI

Frequently Asked Questions

What is NSN 4820-01-323-7321?

NSN 4820-01-323-7321 is a Piston,valve, manufactured by Oil Air Hydraulics Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-323-7321?

NSN 4820-01-323-7321 has 4 cross-referenced part numbers: MS-3-100 ITEM 16 (Oil Air Hydraulics Inc.), 11-405 (Oil Air Hydraulics Inc.), 11-405-SS (Oil Air Hydraulics Inc.), MS-3-100 (Oil Air Hydraulics Inc.).

What NSN replaces 4820-01-323-7321?

There are 12 known substitutes for 4820-01-323-7321: 5133-00-189-9278, 4730-00-215-1133, 5950-00-270-1113 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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