PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21787Switch,sensitive

Mason Electric Co. Dba Mason Controls · NSN 5930-00-910-4033 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-910-4033 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-910-4033. Primary manufacturer part number: 21787.
Features
  • Switch,sensitive — FSC 5930
  • Actuator Movement: 0.050 PRETRAVEL INCHES MAXIMUM AND 0.003 OVERTRAVEL INCHES MINIMUM AND 0.004 DIFFERENTIAL INCHES MAXIMUM
  • Switch Release Force: 4.0 OUNCES MINIMUM OZ
  • Switch Actuating Force: 5.0 OUNCES MINIMUM AND 17.0 OUNCES MAXIMUM OZ
  • Inclosure Type: FULLY INCLOSED
  • Body Style: HOLE MOUNTED
  • Contact Load Current Rating at Maximum Rated Voltage: 5.000 AMPERES RESISTIVE DC AND 3.000 AMPERES INDUCTIVE DC AND 5.000 AMPERES RESISTIVE AC
  • Maximum Voltage Rating in Volts: 250.0 AC AND 28.0 DC
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,sensitive, cataloged under National Stock Number 5930-00-910-4033, is classified within Federal Supply Class 5930 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Mason Electric Co. Dba Mason Controls. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-910-4033
Primary Part Number21787
Item NameSwitch,sensitive
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerMason Electric Co. Dba Mason Controls
StatusACTIVE
Actuator Movement0.050 PRETRAVEL INCHES MAXIMUM AND 0.003 OVERTRAVEL INCHES MINIMUM AND 0.004 DIFFERENTIAL INCHES MAXIMUM
Switch Release Force4.0 OUNCES MINIMUM OZ
Switch Actuating Force5.0 OUNCES MINIMUM AND 17.0 OUNCES MAXIMUM OZ
Inclosure TypeFULLY INCLOSED
Body StyleHOLE MOUNTED
Contact Load Current Rating at Maximum Rated Voltage5.000 AMPERES RESISTIVE DC AND 3.000 AMPERES INDUCTIVE DC AND 5.000 AMPERES RESISTIVE AC
Maximum Voltage Rating in Volts250.0 AC AND 28.0 DC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3455-00-203-988921787 INTERCHANGEABLE
Blade,hole Saw
Black and Decker Us Inc
6610-00-988-919421787 INTERCHANGEABLE
Gasket,bezel
Aerosonic Llc
6210-01-170-0699AML51-F20A INTERCHANGEABLE
Lens,light
Honeywell International Inc. Dba Honeyweel Sensing & Controls
5120-01-187-3660J21787 INTERCHANGEABLE
Remover,bearing and Bushing
Bosch Automotive Service Solutions Inc.
5340-01-417-859821787 INTERCHANGEABLE
Standoff,threaded,snap-in
Elbitamerica, Inc.
6135-01-592-869811141-000100 INTERCHANGEABLE
Battery,nonrechargeable
Physio Control Corp
4730-01-613-291413549509 INTERCHANGEABLE
Clamp,hose
Us Army Aviation and Missile Command
Cross-Reference Index
Part NumberManufacturer
21787 Amphenol Corp Div Amphenol Aerospace Operations (USA)
21787 PRIMARY Mason Electric Co. Dba Mason Controls (USA)
21787 Unison Industries Llc (USA)
1SE3-5INCHLEAD Honeywell International Inc. Dba Honeyweel Sensing & Controls (USA)
Related Parts
3455-00-203-9889INTERCHANGEABLE
BLADE,HOLE SAW
21787
6610-00-988-9194INTERCHANGEABLE
GASKET,BEZEL
21787
6210-01-170-0699INTERCHANGEABLE
LENS,LIGHT
AML51-F20A
5120-01-187-3660INTERCHANGEABLE
REMOVER,BEARING AND BUSHING
J21787
5340-01-417-8598INTERCHANGEABLE
STANDOFF,THREADED,SNAP-IN
21787
6135-01-592-8698INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
11141-000100
4730-01-613-2914INTERCHANGEABLE
CLAMP,HOSE
13549509

Frequently Asked Questions

What is NSN 5930-00-910-4033?

NSN 5930-00-910-4033 is a Switch,sensitive, manufactured by Mason Electric Co. Dba Mason Controls, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-910-4033?

NSN 5930-00-910-4033 has 4 cross-referenced part numbers: 21787 (Amphenol Corp Div Amphenol Aerospace Operations), 21787 (Mason Electric Co. Dba Mason Controls), 21787 (Unison Industries Llc), 1SE3-5INCHLEAD (Honeywell International Inc. Dba Honeyweel Sensing & Controls).

What NSN replaces 5930-00-910-4033?

There are 7 known substitutes for 5930-00-910-4033: 3455-00-203-9889, 6610-00-988-9194, 6210-01-170-0699 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21787?

Key specifications for 21787: Actuator Movement: 0.050 PRETRAVEL INCHES MAXIMUM AND 0.003 OVERTRAVEL INCHES MINIMUM AND 0.004 DIFFERENTIAL INCHES MAXIMUM; Switch Release Force: 4.0 OUNCES MINIMUM OZ; Switch Actuating Force: 5.0 OUNCES MINIMUM AND 17.0 OUNCES MAXIMUM OZ; Inclosure Type: FULLY INCLOSED. 7 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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