PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

212940Insert,engine Valve Seat

Cummins Inc. · NSN 2815-01-049-8966 · FSC 2815 · No Item Name Available
Verified by PartsTable
NSN 2815-01-049-8966 — this item is cataloged by the U.S. Government under National Stock Number 2815-01-049-8966. Primary manufacturer part number: 212940.
Features
  • Insert,engine Valve Seat — FSC 2815
  • Style Designator: PLAIN
  • Body Inside Diameter: 1.766 INCHES MINIMUM AND 1.772 INCHES MAXIMUM IN
  • Seating Surface Shape: ANGULAR
  • Seat Angle in Deg: 30.000 NOMINAL
  • Material: STEEL COMP D4 SEAT
  • Body Outside Diameter: 2.003 INCHES MINIMUM AND 2.004 INCHES MAXIMUM IN
  • 1 verified cross-reference
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Mechanical power generation
  • Drive system operation
General Description

The Insert,engine Valve Seat, cataloged under National Stock Number 2815-01-049-8966, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 6 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2815-01-049-8966
Primary Part Number212940
Item NameInsert,engine Valve Seat
FSC / FSG2815 / 28 — No Item Name Available
ManufacturerCummins Inc.
StatusACTIVE
Style DesignatorPLAIN
Body Inside Diameter1.766 INCHES MINIMUM AND 1.772 INCHES MAXIMUM IN
Seating Surface ShapeANGULAR
Seat Angle in Deg30.000 NOMINAL
MaterialSTEEL COMP D4 SEAT
Body Outside Diameter2.003 INCHES MINIMUM AND 2.004 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2815-01-515-3583212940 INTERCHANGEABLE
Deflector,dirt and Liquid
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
4820-01-567-7580D559A-2M-10 INTERCHANGEABLE
Valve,relief,pressure and Temper
Circor Aerospace, Inc. Dba Circor Aerospace Inc
Cross-Reference Index
Part NumberManufacturer
212940 PRIMARY Cummins Inc. (USA)
Related Parts
2815-01-515-3583INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
212940
4820-01-567-7580INTERCHANGEABLE
VALVE,RELIEF,PRESSURE AND TEMPER
D559A-2M-10

Frequently Asked Questions

What is NSN 2815-01-049-8966?

NSN 2815-01-049-8966 is a Insert,engine Valve Seat, manufactured by Cummins Inc., classified under FSC 2815 (No Item Name Available). Status: active.

What are the part numbers for NSN 2815-01-049-8966?

NSN 2815-01-049-8966 has 1 cross-referenced part number: 212940 (Cummins Inc.).

What NSN replaces 2815-01-049-8966?

There are 2 known substitutes for 2815-01-049-8966: 2815-01-515-3583, 4820-01-567-7580. Verify interchangeability with system specifications before substitution.

What are the specifications of 212940?

Key specifications for 212940: Style Designator: PLAIN; Body Inside Diameter: 1.766 INCHES MINIMUM AND 1.772 INCHES MAXIMUM IN; Seating Surface Shape: ANGULAR; Seat Angle in Deg: 30.000 NOMINAL. 8 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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