PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43018AValve,poppet,engine

Brinkley Technology Group Llc Dba Hercules Manufacturing · NSN 2805-00-354-1988 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-354-1988 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-354-1988. Primary manufacturer part number: 43018A.
Features
  • Valve,poppet,engine — FSC 2805
  • Second Groove Width: 0.0390 INCHES NOMINAL IN
  • Stem Diameter: 0.3740 INCHES NOMINAL IN
  • Material: COBALT ALLOY HEAD
  • Second Groove Diameter: 0.3130 INCHES NOMINAL IN
  • Material: STEEL STEM
  • Stem Length: 4.9880 INCHES NOMINAL IN
  • Stem Style: DOUBLE GROOVED
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 2805-00-354-1988, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 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
NSN2805-00-354-1988
Primary Part Number43018A
Item NameValve,poppet,engine
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerBrinkley Technology Group Llc Dba Hercules Manufacturing
StatusACTIVE
Second Groove Width0.0390 INCHES NOMINAL IN
Stem Diameter0.3740 INCHES NOMINAL IN
MaterialCOBALT ALLOY HEAD
Second Groove Diameter0.3130 INCHES NOMINAL IN
MaterialSTEEL STEM
Stem Length4.9880 INCHES NOMINAL IN
Stem StyleDOUBLE GROOVED
Neck Radius0.3906 INCHES NOMINAL IN
First Groove Width0.0450 INCHES NOMINAL IN
Seat Angle in Deg30.0
Carbon Relief GrooveNOT INCLUDED
First Groove Diameter0.3130 INCHES NOMINAL IN
Chamfer Length0.0312 INCHES NOMINAL IN
Head Height0.1800 INCHES NOMINAL IN
Distance From Second Groove to Stem End0.3600 INCHES NOMINAL IN
Chamfer Angle in Deg45.0
Distance From First Groove to Stem End0.2050 INCHES NOMINAL IN
Head StyleFLAT
Outside Diameter1.8340 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3030-00-232-2575126TG INTERCHANGEABLE
Belt,v
Gates Corporation
5910-00-451-3189 INTERCHANGEABLE
Capacitor,variable,glass Dielect
Cross-Reference Index
Part NumberManufacturer
1088 Napasco International Inc (USA)
V-659X Clow Corp (USA)
V-1454 Mcquay-Norris Inc Oem Div an Skf Industries Co
43018A PRIMARY Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
V-1251 PRIMARY Dana Corp Spicer Transmission Div (USA)
43018A Hercules Engine Co Inc (USA)
V-1897X PRIMARY Trw Inc Trw Intl Trade Government Sales Dept (USA)
V-1897X Ertel Engineering Co (USA)
Related Parts
3030-00-232-2575INTERCHANGEABLE
BELT,V
126TG
5910-00-451-3189INTERCHANGEABLE
CAPACITOR,VARIABLE,GLASS DIELECT

Frequently Asked Questions

What is NSN 2805-00-354-1988?

NSN 2805-00-354-1988 is a Valve,poppet,engine, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 2805 (No Item Name Available). Status: active.

What are the part numbers for NSN 2805-00-354-1988?

NSN 2805-00-354-1988 has 8 cross-referenced part numbers: 1088 (Napasco International Inc), V-659X (Clow Corp), V-1454 (Mcquay-Norris Inc Oem Div an Skf Industries Co), 43018A (Brinkley Technology Group Llc Dba Hercules Manufacturing), V-1251 (Dana Corp Spicer Transmission Div) and 3 more.

What NSN replaces 2805-00-354-1988?

There are 2 known substitutes for 2805-00-354-1988: 3030-00-232-2575, 5910-00-451-3189. Verify interchangeability with system specifications before substitution.

What are the specifications of 43018A?

Key specifications for 43018A: Second Groove Width: 0.0390 INCHES NOMINAL IN; Stem Diameter: 0.3740 INCHES NOMINAL IN; Material: COBALT ALLOY HEAD; Second Groove Diameter: 0.3130 INCHES NOMINAL IN. 19 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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