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1RM4-20 — SWITCH ASSEMBLY

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

1RM4-20: SWITCH ASSEMBLY.

The SWITCH ASSEMBLY is a the manufacturer industrial component. Key specifications include switch_type: SENSITIVE, overall_width: 1.450 INCHES NOMINAL IN, bushing_length: 1.000 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, overall_height: 1.625 INCHES NOMINAL IN, overall_length: 3.136 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5930-00-330-3574, 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→ 1RM4-20
NSN: 5930-00-330-3574
FSC: 5930 — Switches
CAGE: 0A6J3 — INDUSTRIAL RESEARCH AND DEVELOPMENT INC (USA)
SPECIFICATIONS
switch_typeSENSITIVE
overall_width1.450 INCHES NOMINAL IN
bushing_length1.000 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
overall_height1.625 INCHES NOMINAL IN
overall_length3.136 INCHES NOMINAL IN
mounting_methodBUSHING
bushing_diameter0.248 INCHES NOMINAL IN
controlling_agencyMICRO SWITCH
identifying_numberV3-1 PART NO.
inclosure_materialPLASTIC PHENOLIC
individual_switch_quantity4
NSN5930-00-330-3574
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH ASSEMBLY TITLE COMPONENT PN 1RM4-20 MFR SWITCH ASSEMBLY
KEY FEATURES
•
BUSHING LENGTH: 1.000 INCHES NOMINAL IN
•
INCLOSURE TYPE: FULLY INCLOSED
•
CONTROLLING AGENCY: MICRO SWITCH
•
INCLOSURE MATERIAL: PLASTIC PHENOLIC
•
MOUNTING METHOD: BUSHING
•
IDENTIFYING NUMBER: V3-1 PART NO.
TECHNICAL CHARACTERISTICS
BUSHING LENGTH1.000 INCHES NOMINAL IN
OVERALL HEIGHT1.625 INCHES NOMINAL IN
INCLOSURE TYPEFULLY INCLOSED
CONTROLLING AGENCYMICRO SWITCH
INCLOSURE MATERIALPLASTIC PHENOLIC
MOUNTING METHODBUSHING
IDENTIFYING NUMBERV3-1 PART NO.
OVERALL LENGTH3.136 INCHES NOMINAL IN
OVERALL WIDTH1.450 INCHES NOMINAL IN
BUSHING DIAMETER0.248 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5930 — Switches
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5930-00-000-0117 5930-00-001-1407 5930-00-001-1890 5930-00-001-2571 5930-00-001-2575 5930-00-001-2580 5930-00-001-2608 5930-00-001-2609
SUBSTITUTES & CROSS-REFERENCES 1
7AS43Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1RM4-20?
1RM4-20 is a SWITCH ASSEMBLY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1RM4-20?
There is 1 known substitute for 1RM4-20: 7AS43. Substitute compatibility should be verified for your specific system.
What is the NSN for 1RM4-20?
1RM4-20 is cataloged in the U.S. Government catalog under NSN 5930-00-330-3574. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.