PartsTable
Technical Data Sheet
1253 ✓ Verified by PartsTable
BOHLT · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Stranded for flexible routing, solid for conduit THHN/THWN dual-rated — check both tables
Ampacity depends on installation method
PRODUCT OVERVIEW

Motor compatible with the X200 and R200. Key specifications include material: COPPER ALLOY OVERALL, hole_diameter: 0.320 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN, overall_height: 0.1563 INCHES NOMINAL IN, outside_diameter: 1.125 INCHES NOMINAL IN, style_designator: SPRING TENSION, surface_treatment: CADMIUM AND ZINC OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-125-0742, 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 1253
NSN: 6145-00-125-0742
FSC: 6145
CAGE: 92194 — BELDEN, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
hole_diameter0.320 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
overall_height0.1563 INCHES NOMINAL IN
outside_diameter1.125 INCHES NOMINAL IN
style_designatorSPRING TENSION
surface_treatmentCADMIUM AND ZINC OVERALL
material_thickness0.032 INCHES NOMINAL IN
material_document_and_classificationBERYLLUM COPPER ALLOY 25,1/4 HARD MFR REF SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyTENSION WASHER
surface_treatment_document_and_classificationSPEC 0405 MFR REF 1ST TREATMENT RESPONSE OR ASTM B633,TY II,YELLOW,SC 3 ASSN STD 2ND TREATMENT RESPONSE OVERALL
NSN6145-00-125-0742
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: 1253 · BOHLT ⚠ VERIFY BEFORE ORDERING Ampacity depends on installation method — conduit ≠ free air ≠ underground. Same wire, different ratings. AWG sizing is inverse — smaller number = thicker wire (4 AWG > 12 AWG) ✓ BROKER TIP Stranded = flexible routing and vibration resistance. Solid = fixed conduit runs only. THHN/THWN = dual rated — check both dry and wet ampacity tables PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
STRAND QUANTITY PER CONDUCTOR: 26 ALL CONDUCTORS
ROUND CONDUCTOR SIZE: 20 AWG ALL CONDUCTORS
SURFACE TREATMENT: TIN CORE CONDUCTOR ALL CONDUCTORS
VOLTAGE RATING: 600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS
COLOR: BLACK FIRST POSITION JACKET CABLE
CONDUCTOR QUANTITY: 5
STRAND AWG SIZE PER CONDUCTOR: 34 ALL CONDUCTORS
CROSS SECTION OUTSIDE DIAMETER: 0.310 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STRAND QUANTITY PER CONDUCTOR26 ALL CONDUCTORS
ROUND CONDUCTOR SIZE20 AWG ALL CONDUCTORS
SURFACE TREATMENTTIN CORE CONDUCTOR ALL CONDUCTORS
VOLTAGE RATING600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS
COLORBLACK FIRST POSITION JACKET CABLE
CONDUCTOR QUANTITY5
STRAND AWG SIZE PER CONDUCTOR34 ALL CONDUCTORS
CROSS SECTION OUTSIDE DIAMETER0.310 INCHES NOMINAL IN
CONDUCTOR ARRANGEMENT AND QUANTITY5 SINGLES
CROSS-SECTIONAL SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
1253Upgraded Successor
successor cross-reference
successor
8-42-5Upgraded Successor
successor cross-reference
successor
741119-AUpgraded Successor
successor cross-reference
successor
20503Interchangeable
interchangeable cross-reference
interchangeable
SRNTC125Interchangeable
interchangeable cross-reference
interchangeable
MW1453Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1253?
1253 is a RESISTOR,VARIABLE,WIRE WOUND,NON manufactured by BOHLT. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1253?
There are 16 known substitutes for 1253: 1253, 8-42-5, 741119-A and 13 more. Substitute compatibility should be verified for your specific system.
Is 1253 still available?
1253 is currently cancelled.
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