PartsTable
Technical Data Sheet
PartsTable / MRO / 7493
7493 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include material: STEEL, body_style: CYLINDRICAL BUSHING MOUNTED, body_width: 0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, head_style: FLAT CHAMFER, body_height: 0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN, body_length: 22.3 MILLIMETERS MINIMUM MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-297-7671, 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→ 7493
NSN: 5305-00-297-7671
FSC: 5305
CAGE: 06650 — BELL AND HOWELL PHILLIPSBURG CO CORPORATE OFFICES (USA)
SPECIFICATIONS
materialSTEEL
body_styleCYLINDRICAL BUSHING MOUNTED
body_width0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
head_styleFLAT CHAMFER
body_height0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
body_length22.3 MILLIMETERS MINIMUM MM
head_height0.070 INCHES NOMINAL IN
shaft_styleROUND
switch_typeROTARY
shaft_length28.71 MILLIMETERS NOMINAL MM
thread_class2A A
actuator_typeSINGLE SHAFT
NSN5305-00-297-7671
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 7493 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD CLASS: 2A A
•
THREAD LENGTH: 0.188 INCHES MAXIMUM IN
•
HEAD DIAMETER: 0.175 INCHES NOMINAL IN
•
SCREW SURFACE TREATMENT: PASSIVATE
•
HEAD STYLE: FLAT CHAMFER
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
SCREW MATERIAL: STEEL CORROSION RESISTING
•
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY HEAD DIAMETER AND HEAD HEIGHT
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A A
THREAD LENGTH0.188 INCHES MAXIMUM IN
HEAD DIAMETER0.175 INCHES NOMINAL IN
SCREW SURFACE TREATMENTPASSIVATE
HEAD STYLEFLAT CHAMFER
NOMINAL THREAD DIAMETER0.112 INCHES IN
SCREW MATERIALSTEEL CORROSION RESISTING
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY HEAD DIAMETER AND HEAD HEIGHT
THREAD QUANTITY PER INCH40
NONDEFINITIVE SPEC/STD DATA1 TYPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
5509415G40Interchangeable
interchangeable cross-reference
interchangeable
3130-5000-93Interchangeable
interchangeable cross-reference
interchangeable
SN7493ANInterchangeable
interchangeable cross-reference
interchangeable
7493Interchangeable
interchangeable cross-reference
interchangeable
B820AAInterchangeable
interchangeable cross-reference
interchangeable
A820AAInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7493?
7493 is a RESISTOR,VARIABLE,WIRE WOUND,NON. It is classified as a MRO (MRO_GENERAL).
What parts can replace 7493?
There are 16 known substitutes for 7493: 5509415G40, 3130-5000-93, SN7493AN and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7493?
7493 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-297-7671. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026