PartsTable
Technical Data Sheet
PartsTable / MRO / 18-4457
18-4457 ✓ 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: RUBBER INSERT, hole_type: DRILLED, body_style: W/O MTG FACILITIES, TERMINAL(S) ON ONE SURFACE, body_width: 1.920 INCHES NOMINAL IN, head_style: HEXAGON EXTENDED WASHER, body_height: 3.120 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-286-8208, 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→ 18-4457
NSN: 5306-00-286-8208
FSC: 5306
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialRUBBER INSERT
hole_typeDRILLED
body_styleW/O MTG FACILITIES, TERMINAL(S) ON ONE SURFACE
body_width1.920 INCHES NOMINAL IN
head_styleHEXAGON EXTENDED WASHER
body_height3.120 INCHES NOMINAL IN
body_length2.910 INCHES NOMINAL IN
head_height0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
thread_class3A A
actuator_typeFLUSH DRIVE WITH SLOT-HOLE
body_diameter0.770 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
hole_diameter0.062 INCHES NOMINAL IN
NSN5306-00-286-8208
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 18-4457 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
HOLE TYPE: DRILLED
•
FASTENER LENGTH: 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN
•
HEAD STYLE: HEXAGON EXTENDED WASHER
•
THREAD QUANTITY PER INCH: 28
•
EXTENDED WASHER DIAMETER: 0.330 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
WIDTH BETWEEN FLATS: 0.302 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HOLE TYPEDRILLED
FASTENER LENGTH0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN
HEAD STYLEHEXAGON EXTENDED WASHER
THREAD QUANTITY PER INCH28
EXTENDED WASHER DIAMETER0.330 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
WIDTH BETWEEN FLATS0.302 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
EXTENDED WASHER THICKNESS0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
THREAD CLASS3A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
4702-184457Interchangeable
interchangeable cross-reference
interchangeable
184457Interchangeable
interchangeable cross-reference
interchangeable
KML2120Interchangeable
interchangeable cross-reference
interchangeable
72F5163FBInterchangeable
interchangeable cross-reference
interchangeable
0PN12X70Interchangeable
interchangeable cross-reference
interchangeable
23090Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 18-4457?
18-4457 is a RESISTOR,VARIABLE,WIRE WOUND,NON. It is classified as a MRO (MRO_GENERAL).
What parts can replace 18-4457?
There are 8 known substitutes for 18-4457: 4702-184457, 184457, KML2120 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 18-4457?
18-4457 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-286-8208. 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