PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

202161Valve,poppet,engine

Renk America Llc Div Renk America · NSN 2805-00-700-6841 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-700-6841 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-700-6841. Primary manufacturer part number: 202161.
Features
  • Valve,poppet,engine — FSC 2805
  • Outside Diameter: 2.1825 INCHES MINIMUM AND 2.1925 INCHES MAXIMUM IN
  • Metallic Hardness Rating and Location: 60.0 ROCKWELL C NOMINAL TIP
  • Stem Diameter: 0.6195 INCHES MINIMUM AND 0.6200 INCHES MAXIMUM IN
  • Head Height: 0.2660 INCHES MINIMUM AND 0.2760 INCHES MAXIMUM IN
  • Chamfer Angle in Deg: 45.0
  • Neck Radius: 0.5300 INCHES NOMINAL IN
  • Stem Length: 4.6220 INCHES MINIMUM AND 4.6320 INCHES MAXIMUM 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 2805-00-700-6841, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Renk America Llc Div Renk America. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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: Active.

Technical Specifications
ParameterValue
NSN2805-00-700-6841
Primary Part Number202161
Item NameValve,poppet,engine
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerRenk America Llc Div Renk America
StatusACTIVE
Outside Diameter2.1825 INCHES MINIMUM AND 2.1925 INCHES MAXIMUM IN
Metallic Hardness Rating and Location60.0 ROCKWELL C NOMINAL TIP
Stem Diameter0.6195 INCHES MINIMUM AND 0.6200 INCHES MAXIMUM IN
Head Height0.2660 INCHES MINIMUM AND 0.2760 INCHES MAXIMUM IN
Chamfer Angle in Deg45.0
Neck Radius0.5300 INCHES NOMINAL IN
Stem Length4.6220 INCHES MINIMUM AND 4.6320 INCHES MAXIMUM IN
Stem StyleGROOVED
Groove Diameter0.5380 INCHES MINIMUM AND 0.5440 INCHES MAXIMUM IN
Distance From Groove to Stem End0.3910 INCHES MINIMUM AND 0.4120 INCHES MAXIMUM IN
Seat Angle in Deg44.0
Chamfer Length0.0200 INCHES NOMINAL IN
Groove Width0.1870 INCHES MINIMUM AND 0.1970 INCHES MAXIMUM IN
Head StyleCONCAVE
Carbon Relief GrooveNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-00-198-6283 INTERCHANGEABLE
Retainer,gasket
5998-00-422-3259700684-1 INTERCHANGEABLE
Circuit Card Assembly
Raytheon Company Dba Raytheon
Cross-Reference Index
Part NumberManufacturer
202161 PRIMARY Renk America Llc Div Renk America (USA)
7006841 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
4820-00-198-6283INTERCHANGEABLE
RETAINER,GASKET
5998-00-422-3259INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
700684-1

Frequently Asked Questions

What is NSN 2805-00-700-6841?

NSN 2805-00-700-6841 is a Valve,poppet,engine, manufactured by Renk America Llc Div Renk America, classified under FSC 2805 (No Item Name Available). Status: active.

What are the part numbers for NSN 2805-00-700-6841?

NSN 2805-00-700-6841 has 2 cross-referenced part numbers: 202161 (Renk America Llc Div Renk America), 7006841 (U S Army Tank Automotive Command Amsta-Im-Mm).

What NSN replaces 2805-00-700-6841?

There are 2 known substitutes for 2805-00-700-6841: 4820-00-198-6283, 5998-00-422-3259. Verify interchangeability with system specifications before substitution.

What are the specifications of 202161?

Key specifications for 202161: Outside Diameter: 2.1825 INCHES MINIMUM AND 2.1925 INCHES MAXIMUM IN; Metallic Hardness Rating and Location: 60.0 ROCKWELL C NOMINAL TIP; Stem Diameter: 0.6195 INCHES MINIMUM AND 0.6200 INCHES MAXIMUM IN; Head Height: 0.2660 INCHES MINIMUM AND 0.2760 INCHES MAXIMUM IN. 15 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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