PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P11459Insert,engine Valve Seat

Sterling Engine Co Inc · NSN 2815-00-416-8682 · FSC 2815 · No Item Name Available
Verified by PartsTable
NSN 2815-00-416-8682 — this item is cataloged by the U.S. Government under National Stock Number 2815-00-416-8682. Primary manufacturer part number: P11459.
Features
  • Insert,engine Valve Seat — FSC 2815
  • Seat Angle in Deg: 0.750 NOMINAL
  • Body Outside Diameter: 2.003 INCHES MINIMUM AND 2.004 INCHES MAXIMUM IN
  • Hardness Rating: 42.0 ROCKWELL C MAXIMUM FACE
  • Material: STEEL OVERALL
  • Hardness Rating: 30.0 ROCKWELL C MINIMUM BODY
  • FSC Application Data: DIESEL ENGINE
  • Style Designator: PLAIN
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 2815-00-416-8682, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Sterling Engine Co Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2815-00-416-8682
Primary Part NumberP11459
Item NameInsert,engine Valve Seat
FSC / FSG2815 / 28 — No Item Name Available
ManufacturerSterling Engine Co Inc
StatusCANCELLED
Seat Angle in Deg0.750 NOMINAL
Body Outside Diameter2.003 INCHES MINIMUM AND 2.004 INCHES MAXIMUM IN
Hardness Rating42.0 ROCKWELL C MAXIMUM FACE
MaterialSTEEL OVERALL
Hardness Rating30.0 ROCKWELL C MINIMUM BODY
FSC Application DataDIESEL ENGINE
Style DesignatorPLAIN
Seating Surface ShapeANGULAR
Body Inside Diameter1.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5360-00-070-0019P11459 INTERCHANGEABLE
Spring,helical,compression
Aerosonic Llc
3040-00-368-19181144F INTERCHANGEABLE
Shaft,straight
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
Cross-Reference Index
Part NumberManufacturer
NP10021PC5 Cooper Cameron Corp Ajax-Superior Div (USA)
NP7004PCP8 Cooper Cameron Corp Ajax-Superior Div (USA)
P11459 PRIMARY Sterling Engine Co Inc (USA)
P8 Cooper Cameron Corp Ajax-Superior Div (USA)
NP7021PC5 Cooper Cameron Corp Ajax-Superior Div (USA)
NP10004PCP8 Cooper Cameron Corp Ajax-Superior Div (USA)
NP13164PC5011 Cooper Cameron Corp Ajax-Superior Div (USA)
P11459 Cooper Cameron Corp Ajax-Superior Div (USA)
P8 Sterling Engine Co Inc (USA)
NP13167PC1 Cooper Cameron Corp Ajax-Superior Div (USA)
Related Parts
5360-00-070-0019INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
P11459
3040-00-368-1918INTERCHANGEABLE
SHAFT,STRAIGHT
1144F

Frequently Asked Questions

What is NSN 2815-00-416-8682?

NSN 2815-00-416-8682 is a Insert,engine Valve Seat, manufactured by Sterling Engine Co Inc, classified under FSC 2815 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2815-00-416-8682?

NSN 2815-00-416-8682 has 10 cross-referenced part numbers: NP10021PC5 (Cooper Cameron Corp Ajax-Superior Div), NP7004PCP8 (Cooper Cameron Corp Ajax-Superior Div), P11459 (Sterling Engine Co Inc), P8 (Cooper Cameron Corp Ajax-Superior Div), NP7021PC5 (Cooper Cameron Corp Ajax-Superior Div) and 5 more.

What NSN replaces 2815-00-416-8682?

There are 2 known substitutes for 2815-00-416-8682: 5360-00-070-0019, 3040-00-368-1918. Verify interchangeability with system specifications before substitution.

What are the specifications of P11459?

Key specifications for P11459: Seat Angle in Deg: 0.750 NOMINAL; Body Outside Diameter: 2.003 INCHES MINIMUM AND 2.004 INCHES MAXIMUM IN; Overall Height: 0.435 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN; Hardness Rating: 42.0 ROCKWELL C MAXIMUM FACE. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2815-00-416-8682 still in active supply?

NSN 2815-00-416-8682 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.
PartsTable Design LLC · partstable.com