PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 0018-4
0018-4 ✓ Verified by PartsTable
— · BOLT SCREW
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 TRANSFORMER,AUDIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING FILL, face_width: 0.500 INCHES NOMINAL IN, trim_length: 0.812 INCHES NOMINAL IN, wire_diameter: 0.0118 INCHES NOMINAL IN, wire_fill_type: CRIMPED, outside_diameter: 4.000 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-579-1704, 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
0018-4
NSN: 5305-00-579-1704
FSC: 5305
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING FILL
face_width0.500 INCHES NOMINAL IN
trim_length0.812 INCHES NOMINAL IN
wire_diameter0.0118 INCHES NOMINAL IN
wire_fill_typeCRIMPED
outside_diameter4.000 INCHES NOMINAL IN
special_featuresSTAINLESS STEEL WIRE; PLASTIC SNAP-OUT ARBOR HOLE ADAPTER
style_designatorUPRIGHT SHAPE
arbor_hole_diameter0.375 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
maximum_speed_rating_in_rpm6000.0
NSN5305-00-579-1704
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 0018-4 · 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 LENGTH: 0.250 INCHES MINIMUM IN
•
THREAD QUANTITY PER INCH: 56
•
HEAD DIAMETER: 0.153 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE OR ASTM A582 ASSN STD 3RD MATERIAL RESPONSE
•
INTERNAL DRIVE STYLE: SLOT
•
THREAD SERIES DESIGNATOR: UNF
•
SCREW MATERIAL: STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 303
•
FASTENER LENGTH: 0.307 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.250 INCHES MINIMUM IN
THREAD QUANTITY PER INCH56
HEAD DIAMETER0.153 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE OR ASTM A582 ASSN STD 3RD MATERIAL RESPONSE
INTERNAL DRIVE STYLESLOT
THREAD SERIES DESIGNATORUNF
SCREW MATERIALSTEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 303
FASTENER LENGTH0.307 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
THREAD CLASS2A A
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
0018-4Interchangeable
interchangeable cross-reference
interchangeable
0018-1Interchangeable
interchangeable cross-reference
interchangeable
0018Interchangeable
interchangeable cross-reference
interchangeable
PX30-10Interchangeable
interchangeable cross-reference
interchangeable
61-40106-0320Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy 0018-4?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 0018-4?
0018-4 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace 0018-4?
There are 5 known substitutes for 0018-4: 0018-4, 0018-1, 0018 and 2 more. Substitute compatibility should be verified for your specific system.
Is 0018-4 still available?
0018-4 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 0018-4

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026