PartsTable
Technical Data Sheet
C1544 ✓ Verified by PartsTable
DELL · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The SWITCH,TELEPHONE,SELECTOR is a DELL industrial component. Key specifications include body_width: 6.562 INCHES NOMINAL IN, body_height: 5.937 INCHES NOMINAL IN, body_length: 7.625 INCHES NOMINAL IN, hole_diameter: 1.017 INCHES MINIMUM AND 1.042 INCHES MAXIMUM IN, inclosure_type: PARTIALLY INCLOSED, DOUBLE SHELL, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-012-1326, 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
C1544
NSN: 5310-00-012-1326
FSC: 5310
CAGE: 35311 — AMERICAN STANDARD INC WESTINGHOUSE AIR BRAKE CO DIV (USA)
SPECIFICATIONS
body_width6.562 INCHES NOMINAL IN
body_height5.937 INCHES NOMINAL IN
body_length7.625 INCHES NOMINAL IN
hole_diameter1.017 INCHES MINIMUM AND 1.042 INCHES MAXIMUM IN
inclosure_typePARTIALLY INCLOSED, DOUBLE SHELL
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
mounting_methodBRACKET(S) AND THREADED HOLE(S) SINGLE GROUP
frequency_rating60.0 HERTZ NOMINAL SINGLE COMPONENT
outside_diameter1.661 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
nominal_thread_size0.190 INCHES SINGLE GROUP IN
NSN5310-00-012-1326
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: C1544 · DELL ⚠ 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
KEY FEATURES
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
MATERIAL THICKNESS: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
OUTSIDE DIAMETER: 1.661 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA: 2 STYLE AND A CLASS
HOLE DIAMETER: 1.017 INCHES MINIMUM AND 1.042 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
MATERIAL THICKNESS0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.661 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA2 STYLE AND A CLASS
HOLE DIAMETER1.017 INCHES MINIMUM AND 1.042 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
242-790-14Interchangeable
interchangeable cross-reference
interchangeable
91-98005-014Interchangeable
interchangeable cross-reference
interchangeable
110-026-4316Interchangeable
interchangeable cross-reference
interchangeable
T68Interchangeable
interchangeable cross-reference
interchangeable
105315Interchangeable
interchangeable cross-reference
interchangeable
6575334Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C1544?
C1544 is a SWITCH,TELEPHONE,SELECTOR manufactured by DELL.
What parts can replace C1544?
There are 22 known substitutes for C1544: 242-790-14, 91-98005-014, 110-026-4316 and 19 more. Substitute compatibility should be verified for your specific system.
Is C1544 still available?
C1544 is currently cancelled.
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