PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30-301Indicator,valve Opening

The Boeing Company Div Defense · NSN 4820-01-041-0170 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-041-0170 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-041-0170. Primary manufacturer part number: 30-301.
Features
  • Indicator,valve Opening — FSC 4820
  • Supplementary Features: MOUNTING FACILITY TYPE AND QUANTITY: CLAMP 1
  • Dial Outside Diameter: 2.500 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: The Boeing Company Div Defense
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Indicator,valve Opening, cataloged under National Stock Number 4820-01-041-0170, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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.

Technical Specifications
ParameterValue
NSN4820-01-041-0170
Primary Part Number30-301
Item NameIndicator,valve Opening
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Supplementary FeaturesMOUNTING FACILITY TYPE AND QUANTITY: CLAMP 1
Dial Outside Diameter2.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-297-5035 INTERCHANGEABLE
Gasket
1560-00-436-759230301 INTERCHANGEABLE
Tank,fuel,aircraft
American Fuel Cell and Coated Fabrics Company, Llc
6665-00-558-0145 INTERCHANGEABLE
Holder,radiac Sample
5950-00-635-4951P7707433-2 INTERCHANGEABLE
Transformer,power
Westinghouse Electric Corp
5845-00-856-4197 INTERCHANGEABLE
Transducer Subassembly,sonar
4730-01-016-2533 INTERCHANGEABLE
Spud,water Closet
6625-01-025-5984303-01 INTERCHANGEABLE
Voltmeter
Ballantine Laboratories Inc
7810-01-067-682930301 INTERCHANGEABLE
Net,volleyball
Carron Net Company, Inc. Dba Carron Net Co Inc
4310-01-270-235801005705 INTERCHANGEABLE
Ring,piston
Parker Hannifin Corp Fluidpower Group Cylinder Div
6140-01-290-65543030-1 INTERCHANGEABLE
Battery,storage
Mobile Energy Products, Inc. Dba Electro Energy
Cross-Reference Index
Part NumberManufacturer
30-301 PRIMARY The Boeing Company Div Defense (USA)
Related Parts
5330-00-297-5035INTERCHANGEABLE
GASKET
1560-00-436-7592INTERCHANGEABLE
TANK,FUEL,AIRCRAFT
30301
6665-00-558-0145INTERCHANGEABLE
HOLDER,RADIAC SAMPLE
5950-00-635-4951INTERCHANGEABLE
TRANSFORMER,POWER
P7707433-2
5845-00-856-4197INTERCHANGEABLE
TRANSDUCER SUBASSEMBLY,SONAR
4730-01-016-2533INTERCHANGEABLE
SPUD,WATER CLOSET
6625-01-025-5984INTERCHANGEABLE
VOLTMETER
303-01
7810-01-067-6829INTERCHANGEABLE
NET,VOLLEYBALL
30301
4310-01-270-2358INTERCHANGEABLE
RING,PISTON
01005705
6140-01-290-6554INTERCHANGEABLE
BATTERY,STORAGE
3030-1
3455-01-307-3188INTERCHANGEABLE
CUTTER,MILLING,END
30301
4820-01-380-2546INTERCHANGEABLE
BALL,CHECK
30-301

Frequently Asked Questions

What is NSN 4820-01-041-0170?

NSN 4820-01-041-0170 is a Indicator,valve Opening, manufactured by The Boeing Company Div Defense, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-041-0170?

NSN 4820-01-041-0170 has 1 cross-referenced part number: 30-301 (The Boeing Company Div Defense).

What NSN replaces 4820-01-041-0170?

There are 12 known substitutes for 4820-01-041-0170: 5330-00-297-5035, 1560-00-436-7592, 6665-00-558-0145 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30-301?

Key specifications for 30-301: Supplementary Features: MOUNTING FACILITY TYPE AND QUANTITY: CLAMP 1; Special Features: USED TO MEASURE ANGULAR TRAVEL OF THE VALVE BUTTERFLY TO THE OPEN POSITION,RANGE READING 0 TO 360 DEG,RESOLUTION AND ACCURACY 0.500 DEG,CLAMPING CAPACITY 0 TO 1.875 IN IN; Dial Outside Diameter: 2.500 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: INDICATOR,REGLUS UNIVERSAL ANGLE. 5 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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