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Technical Data Sheet
PartsTable / MRO / 20-2181
20-2181 ✓ Verified by PartsTable
EMSA · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The RESISTOR,FIXED,COMPOSITION is a EMSA industrial component. Key specifications include color: BLACK CASE, material: COPPER ALLOY BODY, dial_size: 2 IN. DIA IN, bezel_type: SNAP-ON, scale_name: PRESSURE, scale_type: SINGLE.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-00-141-0742, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ 20-2181
NSN: 5905-00-141-0742
FSC: 5905
CAGE: 21793 — ASTRONICS TEST SYSTEMS INC (USA)
SPECIFICATIONS
colorBLACK CASE
materialCOPPER ALLOY BODY
dial_size2 IN. DIA IN
bezel_typeSNAP-ON
scale_namePRESSURE
scale_typeSINGLE
valve_size3.000 INCHES IN
body_length0.250 INCHES NOMINAL IN
bonnet_typeINSIDE SCREW
scale_range+0.0 TO 30.0 POUNDS PRESSURE PER SQUARE INCH LBS
flange_shapeROUND ALL ENDS
pointer_typeINDICATING
NSN5905-00-141-0742
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: EMSA RESISTOR,FIXED,COMPOSITION TITLE COMPONENT PN 20-2181 MFR EMSA RESISTOR,FIXED,COMPOSI
KEY FEATURES
•
AMBIENT TEMP AT FULL RATED POWER: 70.0 CELSIUS DEGC
•
TERMINAL LENGTH: 1.500 INCHES NOMINAL IN
•
RELIABILITY FAILURE RATE LEVEL IN PERCENT: 0.001
•
RELIABILITY INDICATOR: ESTABLISHED
•
BODY LENGTH: 0.250 INCHES NOMINAL IN
•
POWER DISSIPATION RATING IN WATTS: 0.250 FREE AIR
•
CUBIC MEASURE: 0.002 CUBIC INCHES
TECHNICAL CHARACTERISTICS (FLIS)
AMBIENT TEMP AT FULL RATED POWER70.0 CELSIUS DEGC
TERMINAL LENGTH1.500 INCHES NOMINAL IN
RELIABILITY FAILURE RATE LEVEL IN PERCENT0.001
RELIABILITY INDICATORESTABLISHED
BODY LENGTH0.250 INCHES NOMINAL IN
POWER DISSIPATION RATING IN WATTS0.250 FREE AIR
END ITEM IDENTIFICATIONB-52 AIRCRAFT SUPPORT EQUIPMENT. AN/SLQ-32 COUNTERMEASURE SET. AN/PPS-5B RADAR SET. AN/GSC-39(V)1 SATELLITE COMMUNICATIONS TERMINAL. B-1 AIRCRAFT SUPPORT EQUIPMENT. LHA COMMUNICATIONS. OQ-290(V)MSM TEST STATION. FIRE PUMPS. ARM-155/156 TEST SET. AN/UYQ-3A AIRBORNE MOBILE DIR AIR SPT CTL (2ID), (02M JUL83). A
CUBIC MEASURE0.002 CUBIC INCHES
TERMINAL TYPEWIRE LEAD
INCLOSURE TYPEENCAPSULATED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
47B41917Interchangeable
interchangeable cross-reference
interchangeable
118223Interchangeable
interchangeable cross-reference
interchangeable
410023Interchangeable
interchangeable cross-reference
interchangeable
1820811-55Interchangeable
interchangeable cross-reference
interchangeable
1820811-055Interchangeable
interchangeable cross-reference
interchangeable
TT1181Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20-2181?
20-2181 is a RESISTOR,FIXED,COMPOSITION manufactured by EMSA. It is classified as a MRO (MRO_GENERAL).
What parts can replace 20-2181?
There are 31 known substitutes for 20-2181: 47B41917, 118223, 410023 and 28 more. Substitute compatibility should be verified for your specific system.
Is 20-2181 still available?
20-2181 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026