1657-523 — RESISTOR,VARIABLE,NONWIRE WOUND,

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

1657-523: RESISTOR,VARIABLE,NONWIRE WOUND,.

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include inside_width: 0.756 INCHES NOMINAL IN, inside_length: 0.688 INCHES NOMINAL IN, terminal_type: SCREW, inside_thickness: 0.378 INCHES NOMINAL IN, mounting_facility: MACHINE SCREW AND LOCKNUT, end_item_identification: HR3000 RADAR. This part is cataloged in the U.S.

Government catalog under NSN 5977-00-090-9545, 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→ 1657-523

NSN: 5977-00-090-9545
NIINs: 000909545, 013473366, 014363945
FSC: 5977 — Electrical Contact Brushes and Electrodes
CAGE: 79500 — WESTINGHOUSE ELECTRIC CORP (USA)

SPECIFICATIONS

inside_width	0.756 INCHES NOMINAL IN
inside_length	0.688 INCHES NOMINAL IN
terminal_type	SCREW
inside_thickness	0.378 INCHES NOMINAL IN
mounting_facility	MACHINE SCREW AND LOCKNUT
terminal_quantity	1
end_item_identification	HR3000 RADAR
brush_spring_adjustability	ADJUSTABLE
mounting_facility_quantity	2
brush_quantity_accommodated_per_holder	1
brush_pressure_spring_type_accommodated	HELICAL TORSION
NSN	5977-00-090-9545

COMPONENT DIAGRAM

KEY FEATURES

•

BRUSH SPRING ADJUSTABILITY: ADJUSTABLE

•

MOUNTING FACILITY QUANTITY: 2

•

TERMINAL QUANTITY: 1

•

INSIDE WIDTH: 0.756 INCHES NOMINAL IN

•

TERMINAL TYPE: SCREW

•

INSIDE LENGTH: 0.688 INCHES NOMINAL IN

•

BRUSH QUANTITY ACCOMMODATED PER HOLDER: 1

•

BRUSH PRESSURE SPRING TYPE ACCOMMODATED: HELICAL TORSION

TECHNICAL CHARACTERISTICS

BRUSH SPRING ADJUSTABILITY	ADJUSTABLE
MOUNTING FACILITY QUANTITY	2
TERMINAL QUANTITY	1
INSIDE WIDTH	0.756 INCHES NOMINAL IN
TERMINAL TYPE	SCREW
INSIDE LENGTH	0.688 INCHES NOMINAL IN
BRUSH QUANTITY ACCOMMODATED PER HOLDER	1
BRUSH PRESSURE SPRING TYPE ACCOMMODATED	HELICAL TORSION
MOUNTING FACILITY	MACHINE SCREW AND LOCKNUT
INSIDE THICKNESS	0.378 INCHES NOMINAL IN

SUBSTITUTES & CROSS-REFERENCES 7

AGSS569-S4501-1192192ITEM7Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

6301-3197898PC21Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

29B5011PC1-3TO10Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

828217Reference document

Same NSN cross-reference

Reference document — Secondary reference

W22AReference document

Same NSN cross-reference

Reference document — Design control — primary reference

1-JH-1737PC21Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 1657-523?

1657-523 is a RESISTOR,VARIABLE,NONWIRE WOUND,. It is classified as a MRO (MRO_GENERAL).

What parts can replace 1657-523?

There are 7 known substitutes for 1657-523: AGSS569-S4501-1192192ITEM7, 6301-3197898PC21, 29B5011PC1-3TO10 and 4 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 1657-523?

1657-523 is cataloged in the U.S. Government catalog under NSN 5977-00-090-9545. This indicates validated use in U.S. government and defense supply chains.

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1657-523 — RESISTOR,VARIABLE,NONWIRE WOUND,

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