PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P417-3Valve,poppet,engine

Sterling Engine Co Inc · NSN 2815-00-393-5547 · FSC 2815 · No Item Name Available
Verified by PartsTable
NSN 2815-00-393-5547 — this item is cataloged by the U.S. Government under National Stock Number 2815-00-393-5547. Primary manufacturer part number: P417-3.
Features
  • Valve,poppet,engine — FSC 2815
  • Material: STEEL OVERALL
  • Chamfer Angle in Deg: 45.0
  • Head Height: 3.0000 INCHES NOMINAL IN
  • Distance From Second Groove to Stem End: 0.9270 INCHES NOMINAL IN
  • Seat Angle in Deg: 30.0
  • Head Style: FLAT
  • Outside Diameter: 2.3130 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Mechanical power generation
  • Drive system operation
General Description

The Valve,poppet,engine, cataloged under National Stock Number 2815-00-393-5547, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN2815-00-393-5547
Primary Part NumberP417-3
Item NameValve,poppet,engine
FSC / FSG2815 / 28 — No Item Name Available
ManufacturerSterling Engine Co Inc
StatusCANCELLED
MaterialSTEEL OVERALL
Chamfer Angle in Deg45.0
Head Height3.0000 INCHES NOMINAL IN
Distance From Second Groove to Stem End0.9270 INCHES NOMINAL IN
Seat Angle in Deg30.0
Head StyleFLAT
Outside Diameter2.3130 INCHES NOMINAL IN
Distance From First Groove to Stem End0.3080 INCHES NOMINAL IN
Neck Radius0.2500 INCHES NOMINAL IN
Carbon Relief GrooveNOT INCLUDED
Stem Length6.4340 INCHES NOMINAL IN
Chamfer Length0.03125 INCHES NOMINAL IN
First Groove Diameter0.3600 INCHES NOMINAL IN
First Groove Width0.1320 INCHES NOMINAL IN
Stem StyleDOUBLE GROOVED
Second Groove Diameter0.4200 INCHES NOMINAL IN
Stem Diameter0.4350 INCHES NOMINAL IN
Second Groove Width0.0340 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5310-00-515-8885110110 INTERCHANGEABLE
Washer,flat
Borg-Warner Corp
2930-00-848-05228417R INTERCHANGEABLE
Pump Assy
Elgin Industries Inc. Dba
Cross-Reference Index
Part NumberManufacturer
P417-3 Cooper Cameron Corp Ajax-Superior Div (USA)
P417 Cooper Cameron Corp Ajax-Superior Div (USA)
P417-3 PRIMARY Sterling Engine Co Inc (USA)
Related Parts
5310-00-515-8885INTERCHANGEABLE
WASHER,FLAT
110110
2930-00-848-0522INTERCHANGEABLE
PUMP ASSY
8417R

Frequently Asked Questions

What is NSN 2815-00-393-5547?

NSN 2815-00-393-5547 is a Valve,poppet,engine, manufactured by Sterling Engine Co Inc, classified under FSC 2815 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2815-00-393-5547?

NSN 2815-00-393-5547 has 3 cross-referenced part numbers: P417-3 (Cooper Cameron Corp Ajax-Superior Div), P417 (Cooper Cameron Corp Ajax-Superior Div), P417-3 (Sterling Engine Co Inc).

What NSN replaces 2815-00-393-5547?

There are 2 known substitutes for 2815-00-393-5547: 5310-00-515-8885, 2930-00-848-0522. Verify interchangeability with system specifications before substitution.

What are the specifications of P417-3?

Key specifications for P417-3: Material: STEEL OVERALL; Chamfer Angle in Deg: 45.0; Head Height: 3.0000 INCHES NOMINAL IN; Distance From Second Groove to Stem End: 0.9270 INCHES NOMINAL IN. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2815-00-393-5547 still in active supply?

NSN 2815-00-393-5547 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