PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12840Ring,spring,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-154-9682 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-154-9682 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-154-9682. Primary manufacturer part number: 12840.
Features
  • Ring,spring,valve — FSC 4820
  • General Characteristics Item Description: BRASS,2.530 IN. OD,1.375 IN. ID,FOUR 0.218 IN. DIA MTG HOLES EQUALLY SPACED ON 2.125 IN. DIA BC,0.325 IN. O/A H IN
  • 2 verified cross-references
  • Primary manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Mechanical energy storage
  • Vibration dampening
General Description

The Ring,spring,valve, cataloged under National Stock Number 4820-01-154-9682, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-154-9682
Primary Part Number12840
Item NameRing,spring,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
General Characteristics Item DescriptionBRASS,2.530 IN. OD,1.375 IN. ID,FOUR 0.218 IN. DIA MTG HOLES EQUALLY SPACED ON 2.125 IN. DIA BC,0.325 IN. O/A H IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3110-00-421-742512840 INTERCHANGEABLE
Bearing,roller,cylindrical
Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings
4330-00-472-7397 INTERCHANGEABLE
Filter Element,fluid
2920-00-496-3346 INTERCHANGEABLE
Drive,engine,electrical Starter
3030-00-528-4273 INTERCHANGEABLE
Belt,v
5920-00-883-0842 INTERCHANGEABLE
Fuse,cartridge
5950-01-159-5040 INTERCHANGEABLE
Coil,radio Freq
6130-01-374-72281284-0 INTERCHANGEABLE
Power Supply
Astronics Test Systems Inc
4130-01-432-791412840 INTERCHANGEABLE
Inlet Ring
Munters Corporation Dba Munters Des Champs Products Div Cargocaire
5920-01-460-111012840 INTERCHANGEABLE
Fuse,cartridge
Defiance Machine and Tool Co Inc
Cross-Reference Index
Part NumberManufacturer
12840 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
12840 AND 13277 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
3110-00-421-7425INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
12840
4330-00-472-7397INTERCHANGEABLE
FILTER ELEMENT,FLUID
2920-00-496-3346INTERCHANGEABLE
DRIVE,ENGINE,ELECTRICAL STARTER
3030-00-528-4273INTERCHANGEABLE
BELT,V
5920-00-883-0842INTERCHANGEABLE
FUSE,CARTRIDGE
5950-01-159-5040INTERCHANGEABLE
COIL,RADIO FREQ
6130-01-374-7228INTERCHANGEABLE
POWER SUPPLY
1284-0
4130-01-432-7914INTERCHANGEABLE
INLET RING
12840
5920-01-460-1110INTERCHANGEABLE
FUSE,CARTRIDGE
12840

Frequently Asked Questions

What is NSN 4820-01-154-9682?

NSN 4820-01-154-9682 is a Ring,spring,valve, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-154-9682?

NSN 4820-01-154-9682 has 2 cross-referenced part numbers: 12840 (Leslie Controls, Inc. Dba Leslie Controls Inc), 12840 AND 13277 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-154-9682?

There are 9 known substitutes for 4820-01-154-9682: 3110-00-421-7425, 4330-00-472-7397, 2920-00-496-3346 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12840?

Key specifications for 12840: General Characteristics Item Description: BRASS,2.530 IN. OD,1.375 IN. ID,FOUR 0.218 IN. DIA MTG HOLES EQUALLY SPACED ON 2.125 IN. DIA BC,0.325 IN. O/A H IN. 1 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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