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Technical Data Sheet
PartsTable / MRO / 400018
400018 ✓ 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

The COIL,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, unit_type: ROCHELLE SALT, head_style: HEXAGON, body_length: 0.952 INCHES MAXIMUM IN, grip_length: 2.172 INCHES MINIMUM AND 2.203 INCHES MAXIMUM IN, head_height: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM 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 5306-00-151-1411, 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→ 400018
NSN: 5306-00-151-1411
FSC: 5306
CAGE: 77294 — PIPER INDUSTRIAL MANUFACTURING COMPANY, LLC DIV PIPER INDUSTRIAL MANUFACTURING COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
unit_typeROCHELLE SALT
head_styleHEXAGON
body_length0.952 INCHES MAXIMUM IN
grip_length2.172 INCHES MINIMUM AND 2.203 INCHES MAXIMUM IN
head_height0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
thread_class3A A
overall_width0.3494 INCHES MINIMUM AND 0.3594 INCHES MAXIMUM IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
thread_length0.438 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
coil_form_typeHOLLOW SINGLE COMPONENT
inclosure_typeFULLY INCLOSED
NSN5306-00-151-1411
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 400018 · 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 QUANTITY PER INCH: 28
•
THREAD LENGTH: 0.438 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
•
HEAD STYLE: HEXAGON
•
FEATURES PROVIDED: FINISHED HEAD
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
HEAD HEIGHT: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
•
MINIMUM TENSILE STRENGTH: 125000 POUNDS PER SQUARE INCH LBS
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH28
THREAD LENGTH0.438 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
HEAD STYLEHEXAGON
FEATURES PROVIDEDFINISHED HEAD
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
HEAD HEIGHT0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH LBS
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
AN42-5AUpgraded Successor
successor cross-reference
successor
14025Interchangeable
interchangeable cross-reference
interchangeable
10EJR7Interchangeable
interchangeable cross-reference
interchangeable
42SL25Interchangeable
interchangeable cross-reference
interchangeable
400018Interchangeable
interchangeable cross-reference
interchangeable
C37-6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 400018?
400018 is a COIL,RADIO FREQUENCY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 400018?
There are 14 known substitutes for 400018: AN42-5A, 14025, 10EJR7 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 400018?
400018 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-151-1411. 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