PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

02 09161Seat,valve

Pellerin Milnor Corporation · NSN 4820-00-012-3525 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-012-3525 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-012-3525. Primary manufacturer part number: 02 09161.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: FLAT
  • Style Designator: PLAIN
  • Material: RUBBER SEAT
  • Body Inside Diameter: 3.500 INCHES NOMINAL IN
  • Body Outside Diameter: 4.719 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Pellerin Milnor Corporation
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Seat construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-012-3525, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Pellerin Milnor Corporation. Government technical data includes 5 verified specifications, 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-012-3525
Primary Part Number02 09161
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerPellerin Milnor Corporation
StatusCANCELLED
Seating Surface ShapeFLAT
Style DesignatorPLAIN
MaterialRUBBER SEAT
Body Inside Diameter3.500 INCHES NOMINAL IN
Body Outside Diameter4.719 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
3110-00-100-080504851 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Cnh Industrial America Llc Dba Cnh America
4520-00-232-48902916-1 INTERCHANGEABLE
Heating Element,electrical,nonim
Goodrich Corporation
5315-00-425-865229161 INTERCHANGEABLE
Pin,straight,headless
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
6520-01-518-100729161 INTERCHANGEABLE
Handle,machine,dental
Nobel Biocare Usa, Llc
1005-01-630-651529161 INTERCHANGEABLE
Extractor,cartridge
U.s. Ordnance
6850-01-689-3287198-00011 INTERCHANGEABLE
Green,gas
Kwa Performance Industries, Inc. Dba Kwa Performance Industries Inc
Cross-Reference Index
Part NumberManufacturer
2-9161 Pellerin Milnor Corporation (USA)
02 09161 PRIMARY Pellerin Milnor Corporation (USA)
Related Parts
3110-00-100-0805INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
04851
4520-00-232-4890INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
2916-1
5315-00-425-8652INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
29161
6520-01-518-1007INTERCHANGEABLE
HANDLE,MACHINE,DENTAL
29161
1005-01-630-6515INTERCHANGEABLE
EXTRACTOR,CARTRIDGE
29161
6850-01-689-3287INTERCHANGEABLE
GREEN,GAS
198-00011

Frequently Asked Questions

What is NSN 4820-00-012-3525?

NSN 4820-00-012-3525 is a Seat,valve, manufactured by Pellerin Milnor Corporation, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-012-3525?

NSN 4820-00-012-3525 has 2 cross-referenced part numbers: 2-9161 (Pellerin Milnor Corporation), 02 09161 (Pellerin Milnor Corporation).

What NSN replaces 4820-00-012-3525?

There are 6 known substitutes for 4820-00-012-3525: 3110-00-100-0805, 4520-00-232-4890, 5315-00-425-8652 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 02 09161?

Key specifications for 02 09161: Seating Surface Shape: FLAT; Style Designator: PLAIN; Overall Height: 0.250 INCHES NOMINAL IN; Material: RUBBER SEAT. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-012-3525 still in active supply?

NSN 4820-00-012-3525 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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