PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12086Piston and Seat Assembly

Pneu-Hydro Products · NSN 4820-00-446-3828 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-446-3828 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-446-3828. Primary manufacturer part number: 12086.
Features
  • Piston and Seat Assembly — FSC 4820
  • General Characteristics Item Description: CONSIST OF PISTON 1,SEAT 1
  • 1 verified cross-reference
  • Primary manufacturer: Pneu-Hydro Products
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Piston and Seat Assembly, cataloged under National Stock Number 4820-00-446-3828, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Pneu-Hydro Products. Government technical data includes 1 verified specification, 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-446-3828
Primary Part Number12086
Item NamePiston and Seat Assembly
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerPneu-Hydro Products
StatusACTIVE
General Characteristics Item DescriptionCONSIST OF PISTON 1,SEAT 1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5935-00-096-7076SM-B-148798-2 INTERCHANGEABLE
Connector,plug,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-105-2148 INTERCHANGEABLE
Transformer,power
3040-00-772-6787 INTERCHANGEABLE
Disc,brake
5995-01-115-137112086 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Cooper Interconnect, Inc. Dba Cooper Interconnect
6105-01-143-9656 INTERCHANGEABLE
Motor,stepping
5365-01-286-518612086 INTERCHANGEABLE
Spacer,plate
O F Mossberg & Sons Inc
5945-01-497-271112086 INTERCHANGEABLE
Relay,electromagnetic
Imi Cornelius Inc.
5305-01-507-29170341741A05 INTERCHANGEABLE
Screw,machine
Prestolite Electric Inc
6550-01-573-94686425 INTERCHANGEABLE
Spreader,plate,staph Express Dis
Neogen Corp
5330-01-613-8260120-8-6 INTERCHANGEABLE
Seal,nonmetallic Round Section
Parker Hannifin Corporation Div Village Marine Tech
Cross-Reference Index
Part NumberManufacturer
12086 Pneu-Hydro Products (USA)
Related Parts
5935-00-096-7076INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
SM-B-148798-2
5950-00-105-2148INTERCHANGEABLE
TRANSFORMER,POWER
3040-00-772-6787INTERCHANGEABLE
DISC,BRAKE
5995-01-115-1371INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
12086
6105-01-143-9656INTERCHANGEABLE
MOTOR,STEPPING
5365-01-286-5186INTERCHANGEABLE
SPACER,PLATE
12086
5945-01-497-2711INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
12086
5305-01-507-2917INTERCHANGEABLE
SCREW,MACHINE
0341741A05
6550-01-573-9468INTERCHANGEABLE
SPREADER,PLATE,STAPH EXPRESS DIS
6425
5330-01-613-8260INTERCHANGEABLE
SEAL,NONMETALLIC ROUND SECTION
120-8-6
1005-01-632-7354INTERCHANGEABLE
YOKE,BIPOD
12086

Frequently Asked Questions

What is NSN 4820-00-446-3828?

NSN 4820-00-446-3828 is a Piston and Seat Assembly, manufactured by Pneu-Hydro Products, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-446-3828?

NSN 4820-00-446-3828 has 1 cross-referenced part number: 12086 (Pneu-Hydro Products).

What NSN replaces 4820-00-446-3828?

There are 11 known substitutes for 4820-00-446-3828: 5935-00-096-7076, 5950-00-105-2148, 3040-00-772-6787 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12086?

Key specifications for 12086: General Characteristics Item Description: CONSIST OF PISTON 1,SEAT 1; End Item Identification: 48209940069. 2 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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