PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

646421Valve,poppet,engine

Am General Llc · NSN 2805-00-293-9701 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-293-9701 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-293-9701. Primary manufacturer part number: 646421.
Features
  • Valve,poppet,engine — FSC 2805
  • Stem Diameter: 0.3733 INCHES MINIMUM AND 0.3738 INCHES MAXIMUM IN
  • Seat Angle in Deg: 45.0
  • Outside Diameter: 2.0000 INCHES NOMINAL IN
  • Head Height: 0.1562 INCHES NOMINAL IN
  • Metallic Hardness Rating and Location: 52.0 ROCKWELL C MINIMUM TIP
  • FSC Application Data: GASOLINE ENGINE
  • Chamfer Angle in Deg: 45.0
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 2805-00-293-9701, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Am General Llc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2805-00-293-9701
Primary Part Number646421
Item NameValve,poppet,engine
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerAm General Llc
StatusCANCELLED
Stem Diameter0.3733 INCHES MINIMUM AND 0.3738 INCHES MAXIMUM IN
Seat Angle in Deg45.0
Outside Diameter2.0000 INCHES NOMINAL IN
Head Height0.1562 INCHES NOMINAL IN
Metallic Hardness Rating and Location52.0 ROCKWELL C MINIMUM TIP
FSC Application DataGASOLINE ENGINE
Chamfer Angle in Deg45.0
Stem StyleGROOVED
Groove Width0.3105 INCHES MINIMUM AND 0.3145 INCHES MAXIMUM IN
Chamfer Length0.0312 INCHES NOMINAL IN
Carbon Relief GrooveNOT INCLUDED
Neck Radius0.7500 INCHES NOMINAL IN
Groove Diameter0.2480 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
Distance From Groove to Stem End0.1875 INCHES NOMINAL IN
Stem Length4.6250 INCHES NOMINAL IN
Head StyleINVERTED CONE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
6240-00-044-50251850 INTERCHANGEABLE
Lamp,incandescent
Westinghouse Electric Corp
6210-00-472-6067 INTERCHANGEABLE
Globe,electric Light
3510-01-010-0032JV-73 INTERCHANGEABLE
Lint Screen Assembly
Alliance Laundry Systems Llc
Cross-Reference Index
Part NumberManufacturer
3632805-800010 Chief of Engineers Dept of Army (USA)
8329697 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
V1515N Mcquay-Norris Inc Oem Div an Skf Industries Co
I-302 Gould Inc Clevite Engine Parts Div (USA)
V1941 Eaton Corp Dba Eaton Aerospace Jackson (USA)
646421 PRIMARY Am General Llc (USA)
1162 Allied Motor Parts Co (USA)
V73 Ertel Mfg Corp (USA)
1162 Napasco International Inc (USA)
V1353 Dana Corp Engine Products Div (USA)
Related Parts
6240-00-044-5025INTERCHANGEABLE
LAMP,INCANDESCENT
1850
6210-00-472-6067INTERCHANGEABLE
GLOBE,ELECTRIC LIGHT
3510-01-010-0032INTERCHANGEABLE
LINT SCREEN ASSEMBLY
JV-73

Frequently Asked Questions

What is NSN 2805-00-293-9701?

NSN 2805-00-293-9701 is a Valve,poppet,engine, manufactured by Am General Llc, classified under FSC 2805 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2805-00-293-9701?

NSN 2805-00-293-9701 has 10 cross-referenced part numbers: 3632805-800010 (Chief of Engineers Dept of Army), 8329697 (U S Army Tank Automotive Command Amsta-Im-Mm), V1515N (Mcquay-Norris Inc Oem Div an Skf Industries Co), I-302 (Gould Inc Clevite Engine Parts Div), V1941 (Eaton Corp Dba Eaton Aerospace Jackson) and 5 more.

What NSN replaces 2805-00-293-9701?

There are 3 known substitutes for 2805-00-293-9701: 6240-00-044-5025, 6210-00-472-6067, 3510-01-010-0032. Verify interchangeability with system specifications before substitution.

What are the specifications of 646421?

Key specifications for 646421: Stem Diameter: 0.3733 INCHES MINIMUM AND 0.3738 INCHES MAXIMUM IN; Seat Angle in Deg: 45.0; Outside Diameter: 2.0000 INCHES NOMINAL IN; Head Height: 0.1562 INCHES NOMINAL IN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2805-00-293-9701 still in active supply?

NSN 2805-00-293-9701 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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