PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D-1639Valve,poppet,engine

Dana Corp Spicer Transmission Div · NSN 2805-00-271-9543 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-271-9543 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-271-9543. Primary manufacturer part number: D-1639.
Features
  • Valve,poppet,engine — FSC 2805
  • Hole Diameter: 0.1260 INCHES MINIMUM AND 0.1320 INCHES MAXIMUM IN
  • Head Style: FLAT
  • FSC Application Data: GASOLINE ENGINE
  • Metallic Hardness Rating and Location: 37.0 ROCKWELL C NOMINAL TIP
  • Stem Length: 2.9790 INCHES MINIMUM AND 2.9990 INCHES MAXIMUM IN
  • Seat Angle in Deg: 30.0
  • 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 2805-00-271-9543, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Dana Corp Spicer Transmission Div. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2805-00-271-9543
Primary Part NumberD-1639
Item NameValve,poppet,engine
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerDana Corp Spicer Transmission Div
StatusCANCELLED
Hole Diameter0.1260 INCHES MINIMUM AND 0.1320 INCHES MAXIMUM IN
Head StyleFLAT
FSC Application DataGASOLINE ENGINE
Metallic Hardness Rating and Location37.0 ROCKWELL C NOMINAL TIP
Stem Length2.9790 INCHES MINIMUM AND 2.9990 INCHES MAXIMUM IN
Seat Angle in Deg30.0
Chamfer Angle in Deg45.0
Distance From Hole Center to Stem End0.1562 INCHES NOMINAL IN
Chamfer Length0.0312 INCHES NOMINAL IN
Stem StyleDRILLED
Stem Diameter0.2470 INCHES MINIMUM AND 0.2480 INCHES MAXIMUM IN
Outside Diameter1.0430 INCHES MINIMUM AND 1.0530 INCHES MAXIMUM IN
Head Height0.1300 INCHES MINIMUM AND 0.1500 INCHES MAXIMUM IN
Carbon Relief GrooveNOT INCLUDED
Neck Radius0.3125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5340-00-042-85318233B0632-3 INTERCHANGEABLE
Standoff,threaded,spacing
Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware
5950-00-083-0681DO-T39 INTERCHANGEABLE
Transformer,audio Frequency
Shield Air Co
5330-00-251-32294001639-6 INTERCHANGEABLE
Gasket
Agco Corp Parts Opn
5962-00-321-7972SMA731262 INTERCHANGEABLE
Amplifier
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5310-00-497-3894 INTERCHANGEABLE
Nut,self-Locking,hexagon
3020-00-517-23648-6PC77 INTERCHANGEABLE
Gear,worm
The Dewey Electronics Corporation Div Pitometer Log Division
3810-00-776-5301 INTERCHANGEABLE
Molding Windshield
5996-01-005-9519151169-01 INTERCHANGEABLE
Amplifier,direct Current
Ge Aviation Systems Llc
5325-01-076-8453WA-514 INTERCHANGEABLE
Ring,retaining
West Coast Lockwasher Co., Inc. Dba West Coast Lockwasher Co Inc Div West Coast Lockwasher
5815-01-083-9412 INTERCHANGEABLE
Guide,needle
Cross-Reference Index
Part NumberManufacturer
VE804 Spx Corp (USA)
D-1639 PRIMARY Dana Corp Spicer Transmission Div (USA)
58111A Hercules Engine Co Inc (USA)
VE804 Bosch Automotive Service Solutions Inc. (USA)
58111A PRIMARY Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
1639 Napasco International Inc (USA)
S1632 PRIMARY Eaton Corp Dba Eaton Aerospace Jackson (USA)
58010A PRIMARY Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
S-907 Ertel Engineering Co (USA)
58010A Hercules Engine Co Inc (USA)
X857 Sterling Div Federal Mogul Corp (USA)
Related Parts
5340-00-042-8531INTERCHANGEABLE
STANDOFF,THREADED,SPACING
8233B0632-3
5950-00-083-0681INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
DO-T39
5330-00-251-3229INTERCHANGEABLE
GASKET
4001639-6
5962-00-321-7972INTERCHANGEABLE
AMPLIFIER
SMA731262
5310-00-497-3894INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
3020-00-517-2364INTERCHANGEABLE
GEAR,WORM
8-6PC77
3810-00-776-5301INTERCHANGEABLE
MOLDING WINDSHIELD
5996-01-005-9519INTERCHANGEABLE
AMPLIFIER,DIRECT CURRENT
151169-01
5325-01-076-8453INTERCHANGEABLE
RING,RETAINING
WA-514
5815-01-083-9412INTERCHANGEABLE
GUIDE,NEEDLE
5340-01-088-4737INTERCHANGEABLE
HANDLE,BOW
1639
5905-01-096-3677INTERCHANGEABLE
RESISTOR
1639

Frequently Asked Questions

What is NSN 2805-00-271-9543?

NSN 2805-00-271-9543 is a Valve,poppet,engine, manufactured by Dana Corp Spicer Transmission Div, classified under FSC 2805 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2805-00-271-9543?

NSN 2805-00-271-9543 has 11 cross-referenced part numbers: VE804 (Spx Corp), D-1639 (Dana Corp Spicer Transmission Div), 58111A (Hercules Engine Co Inc), VE804 (Bosch Automotive Service Solutions Inc.), 58111A (Brinkley Technology Group Llc Dba Hercules Manufacturing) and 6 more.

What NSN replaces 2805-00-271-9543?

There are 12 known substitutes for 2805-00-271-9543: 5340-00-042-8531, 5950-00-083-0681, 5330-00-251-3229 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of D-1639?

Key specifications for D-1639: Hole Diameter: 0.1260 INCHES MINIMUM AND 0.1320 INCHES MAXIMUM IN; Head Style: FLAT; FSC Application Data: GASOLINE ENGINE; Metallic Hardness Rating and Location: 37.0 ROCKWELL C NOMINAL TIP. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2805-00-271-9543 still in active supply?

NSN 2805-00-271-9543 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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