PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20951Switch,pressure

Alter Harry Co the Div of T E C · NSN 5930-01-253-1515 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-253-1515 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-253-1515. Primary manufacturer part number: 20951.
Features
  • Switch,pressure — FSC 5930
  • Contact Voltage Rating in Volts: 120.0 AC AT SEA LEVEL FIRST VOLTAGE
  • Style Designator: RECTANGULAR
  • Pressure Switch Type: DIFFERENTIAL
  • Contact Adjustability: ACTUATION POINT ADJUSTABLE, PRESET AND DEACTUATION POINT ADJUSTABLE, PRESET
  • Contact Load Current Rating: 5.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE
  • Contact Voltage Rating in Volts: 240.0 AC AT SEA LEVEL SECOND VOLTAGE
  • Contact Action Stimulus: DECREASE
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,pressure, cataloged under National Stock Number 5930-01-253-1515, 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 Alter Harry Co the Div of T E C. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-01-253-1515
Primary Part Number20951
Item NameSwitch,pressure
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerAlter Harry Co the Div of T E C
StatusACTIVE
Contact Voltage Rating in Volts120.0 AC AT SEA LEVEL FIRST VOLTAGE
Style DesignatorRECTANGULAR
Pressure Switch TypeDIFFERENTIAL
Contact AdjustabilityACTUATION POINT ADJUSTABLE, PRESET AND DEACTUATION POINT ADJUSTABLE, PRESET
Contact Load Current Rating5.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE
Contact Voltage Rating in Volts240.0 AC AT SEA LEVEL SECOND VOLTAGE
Contact Action StimulusDECREASE
Contact Stimulus Rating8.00 DIFFERENTIAL POINT MINIMUM POUND AND 70.00 DIFFERENTIAL POINT MAXIMUM POUND
Media for Which DesignedLIQUID
Contact Load Current Rating10.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
2940-00-076-2597136500 INTERCHANGEABLE
Filter Element,fluid
Cummins Inc.
3110-00-100-7330170739A INTERCHANGEABLE
Bearing,roller,cylindrical
Skf Usa Inc.
2530-00-521-4981F967 INTERCHANGEABLE
Boot,vehicular Components
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5940-00-577-3950RA881F INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
2920-01-117-325120951 INTERCHANGEABLE
Lead,ignition,engine
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
4320-01-221-156420951 PIECE 8 INTERCHANGEABLE
Ring,lantern
Skf Usa Inc.
2990-01-266-125020951 INTERCHANGEABLE
Arrester,spark Exhaust
Mark Industries
4730-01-517-1407C20951 INTERCHANGEABLE
Elbow,hose
Hydrasearch Company, Llc
5110-01-644-434620951AMP INTERCHANGEABLE
Die,metal Stamping,hand
Hanson, C H Company, the
6635-01-735-4730209.51 INTERCHANGEABLE
Test Set,soil
Ams, Inc
Cross-Reference Index
Part NumberManufacturer
P28AA Johnson Controls Inc Control Products Div (USA)
20951 PRIMARY Alter Harry Co the Div of T E C (USA)
Related Parts
2940-00-076-2597INTERCHANGEABLE
FILTER ELEMENT,FLUID
136500
3110-00-100-7330INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
170739A
2530-00-521-4981INTERCHANGEABLE
BOOT,VEHICULAR COMPONENTS
F967
5940-00-577-3950INTERCHANGEABLE
TERMINAL,LUG
RA881F
2920-01-117-3251INTERCHANGEABLE
LEAD,IGNITION,ENGINE
20951
4320-01-221-1564INTERCHANGEABLE
RING,LANTERN
20951 PIECE 8
2990-01-266-1250INTERCHANGEABLE
ARRESTER,SPARK EXHAUST
20951
4730-01-517-1407INTERCHANGEABLE
ELBOW,HOSE
C20951
5110-01-644-4346INTERCHANGEABLE
DIE,METAL STAMPING,HAND
20951AMP
6635-01-735-4730INTERCHANGEABLE
TEST SET,SOIL
209.51

Frequently Asked Questions

What is NSN 5930-01-253-1515?

NSN 5930-01-253-1515 is a Switch,pressure, manufactured by Alter Harry Co the Div of T E C, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-01-253-1515?

NSN 5930-01-253-1515 has 2 cross-referenced part numbers: P28AA (Johnson Controls Inc Control Products Div), 20951 (Alter Harry Co the Div of T E C).

What NSN replaces 5930-01-253-1515?

There are 10 known substitutes for 5930-01-253-1515: 2940-00-076-2597, 3110-00-100-7330, 2530-00-521-4981 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20951?

Key specifications for 20951: Contact Voltage Rating in Volts: 120.0 AC AT SEA LEVEL FIRST VOLTAGE; Style Designator: RECTANGULAR; Pressure Switch Type: DIFFERENTIAL; Contact Adjustability: ACTUATION POINT ADJUSTABLE, PRESET AND DEACTUATION POINT ADJUSTABLE, PRESET. 13 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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