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204891 — SWITCH,PROXIMITY

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

204891: SWITCH,PROXIMITY.

The SWITCH,PROXIMITY is a the manufacturer industrial component. Key specifications include body_length: 4.050 INCHES NOMINAL IN, terminal_type: WIRE LEAD, special_features: INTEGRAL PROXITY SWITCH, MPS20D0C, style_designator: RECTANGULAR, contact_adjustability: DEACTUATION POINT NOT ADJUSTABLE, contact_action_stimulus: INCREASE. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-272-9058, 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→ 204891
NSN: 5310-01-272-9058
NIINs: 012729058, 013360157, 014969654
FSC: 5310 — Nuts and Washers
CAGE: 86090 — EATON CORPORATION DBA AIRFRAME DIV FUEL & MOTION CONTROL SYSTEMS (USA)
SPECIFICATIONS
body_length4.050 INCHES NOMINAL IN
terminal_typeWIRE LEAD
special_featuresINTEGRAL PROXITY SWITCH, MPS20D0C
style_designatorRECTANGULAR
contact_adjustabilityDEACTUATION POINT NOT ADJUSTABLE
contact_action_stimulusINCREASE
end_item_identificationPROXIMITY SWI, NIMITZ CLASS CVN
NSN5310-01-272-9058
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 204891 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 204891?
204891 is a SWITCH,PROXIMITY. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 204891?
204891 is cataloged in the U.S. Government catalog under NSN 5310-01-272-9058. 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.