PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-2541Guide,valve Stem

General Motors Llc Dba General Motors Llc · NSN 2805-00-737-8860 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-737-8860 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-737-8860. Primary manufacturer part number: 4-2541.
Features
  • Guide,valve Stem — FSC 2805
  • Outside Diameter: 0.750 INCHES NOMINAL IN
  • Bore Countersink: NOT INCLUDED
  • Aa End Chamfer Length: 0.031 INCHES NOMINAL IN
  • Bb End Shank Diameter: 0.532 INCHES MINIMUM AND 0.533 INCHES MAXIMUM IN
  • Bb End Chamfer Length: 0.063 INCHES NOMINAL IN
  • Bb End Chamfer Angle in Deg: 75.0
  • Bore Counterbore: NOT INCLUDED
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy construction
General Description

The Guide,valve Stem, cataloged under National Stock Number 2805-00-737-8860, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN2805-00-737-8860
Primary Part Number4-2541
Item NameGuide,valve Stem
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerGeneral Motors Llc Dba General Motors Llc
StatusACTIVE
Outside Diameter0.750 INCHES NOMINAL IN
Bore CountersinkNOT INCLUDED
Aa End Chamfer Length0.031 INCHES NOMINAL IN
Bb End Shank Diameter0.532 INCHES MINIMUM AND 0.533 INCHES MAXIMUM IN
Bb End Chamfer Length0.063 INCHES NOMINAL IN
Bb End Chamfer Angle in Deg75.0
Bore CounterboreNOT INCLUDED
Major Diameter Length0.094 INCHES NOMINAL IN
Aa End Chamfer Angle in Deg45.0
MaterialCOPPER ALLOY
Bore Diameter0.3230 INCHES MINIMUM AND 0.3260 INCHES MAXIMUM IN
Style DesignatorPLAIN FLANGED
FSC Application DataENGINE,GASOLINE,NON-AIRCRAFT
Material Document and ClassificationSAE 63,FSCM 81343 ASSN STD SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5950-00-853-7667994499-01 INTERCHANGEABLE
Transformer,power
Ge Aviation Systems Llc
6220-01-651-9787425-4-1 INTERCHANGEABLE
Panel,indicating,light Transmitt
Dutch Valley Supply Co.
Cross-Reference Index
Part NumberManufacturer
4-2541 General Motors Corp (USA)
7378860 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
4-2541 PRIMARY General Motors Llc Dba General Motors Llc (USA)
Related Parts
5950-00-853-7667INTERCHANGEABLE
TRANSFORMER,POWER
994499-01
6220-01-651-9787INTERCHANGEABLE
PANEL,INDICATING,LIGHT TRANSMITT
425-4-1

Frequently Asked Questions

What is NSN 2805-00-737-8860?

NSN 2805-00-737-8860 is a Guide,valve Stem, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 2805 (No Item Name Available). Status: active.

What are the part numbers for NSN 2805-00-737-8860?

NSN 2805-00-737-8860 has 3 cross-referenced part numbers: 4-2541 (General Motors Corp), 7378860 (U S Army Tank Automotive Command Amsta-Im-Mm), 4-2541 (General Motors Llc Dba General Motors Llc).

What NSN replaces 2805-00-737-8860?

There are 2 known substitutes for 2805-00-737-8860: 5950-00-853-7667, 6220-01-651-9787. Verify interchangeability with system specifications before substitution.

What are the specifications of 4-2541?

Key specifications for 4-2541: Outside Diameter: 0.750 INCHES NOMINAL IN; Bore Countersink: NOT INCLUDED; Aa End Chamfer Length: 0.031 INCHES NOMINAL IN; Special Features: SHANK UNDERCUT AT FACE OF LARGEST DIA,1/16 IN. LG,1/2 IN. DIA IN. 16 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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