PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25741Plunger,detent

Drs Environmental Systems Inc · NSN 1650-00-651-8561 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-651-8561 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-651-8561. Primary manufacturer part number: 25741.
Features
  • Plunger,detent — FSC 1650
  • Material: STEEL CORROSION RESISTING OVERALL
  • Length: 0.437 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
  • Diameter: 0.187 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
  • 5 verified cross-references
  • Primary manufacturer: Drs Environmental Systems Inc
Applications
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Plunger,detent, cataloged under National Stock Number 1650-00-651-8561, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Drs Environmental Systems Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN1650-00-651-8561
Primary Part Number25741
Item NamePlunger,detent
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerDrs Environmental Systems Inc
StatusCANCELLED
MaterialSTEEL CORROSION RESISTING OVERALL
Length0.437 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Diameter0.187 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5330-00-354-171917246A INTERCHANGEABLE
Gasket
Brinkley Technology Group Llc Dba Hercules Manufacturing
5915-00-476-8306SM-B-2016077 INTERCHANGEABLE
Network,circuit Protection
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5930-00-539-6731BX-2RS-A2 INTERCHANGEABLE
Switch,sensitive
Honeywell International Inc. Dba Honeyweel Sensing & Controls
6350-01-252-62902178 INTERCHANGEABLE
Horn,signal
Windham Lifts Inc
4820-01-529-991925741 INTERCHANGEABLE
Disk,valve
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
Cross-Reference Index
Part NumberManufacturer
25741 Davey Compressor Co Div of Keco Industries Inc (USA)
AM25741 Davey Compressor Co Div of Keco Industries Inc (USA)
A25741 Spectrum Manufacturing & Sales, Inc (USA)
25741 PRIMARY Drs Environmental Systems Inc (USA)
A25741 Davey Compressor Co Div of Keco Industries Inc (USA)
Related Parts
5330-00-354-1719INTERCHANGEABLE
GASKET
17246A
5915-00-476-8306INTERCHANGEABLE
NETWORK,CIRCUIT PROTECTION
SM-B-2016077
5930-00-539-6731INTERCHANGEABLE
SWITCH,SENSITIVE
BX-2RS-A2
6350-01-252-6290INTERCHANGEABLE
HORN,SIGNAL
2178
4820-01-529-9919INTERCHANGEABLE
DISK,VALVE
25741

Frequently Asked Questions

What is NSN 1650-00-651-8561?

NSN 1650-00-651-8561 is a Plunger,detent, manufactured by Drs Environmental Systems Inc, classified under FSC 1650 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 1650-00-651-8561?

NSN 1650-00-651-8561 has 5 cross-referenced part numbers: 25741 (Davey Compressor Co Div of Keco Industries Inc), AM25741 (Davey Compressor Co Div of Keco Industries Inc), A25741 (Spectrum Manufacturing & Sales, Inc), 25741 (Drs Environmental Systems Inc), A25741 (Davey Compressor Co Div of Keco Industries Inc).

What NSN replaces 1650-00-651-8561?

There are 5 known substitutes for 1650-00-651-8561: 5330-00-354-1719, 5915-00-476-8306, 5930-00-539-6731 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25741?

Key specifications for 25741: Material: STEEL CORROSION RESISTING OVERALL; Special Features: W/ 0.125 IN. DIA X 0.062 IN. DP HOLE IN CENTER OF HEAD;USED ON GRUMMAN AIRCRAFT,MODEL A-10 IN; Length: 0.437 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Diameter: 0.187 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 1650-00-651-8561 still in active supply?

NSN 1650-00-651-8561 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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