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Technical Data Sheet
PartsTable / COMPONENT / 00185
00185 ✓ 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. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-485-9256, 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
00185
NSN: 5305-00-485-9256
FSC: 5305
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
Part Number00185
NSN5305-00-485-9256
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 00185 · 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
•
HEAD STYLE: HEXAGON
•
SCREW MATERIAL: STEEL CORROSION RESISTING
•
WIDTH BETWEEN FLATS: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
•
THREAD SERIES DESIGNATOR: UNF
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
FASTENER LENGTH: 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
•
INTERNAL DRIVE STYLE: SLOT
•
HEAD HEIGHT: 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEHEXAGON
SCREW MATERIALSTEEL CORROSION RESISTING
WIDTH BETWEEN FLATS0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.250 INCHES IN
FASTENER LENGTH0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
INTERNAL DRIVE STYLESLOT
HEAD HEIGHT0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
THREAD LENGTH0.681 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN
THREAD CLASS3A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
0018-4Interchangeable
interchangeable cross-reference
interchangeable
0018-1Interchangeable
interchangeable cross-reference
interchangeable
0018Interchangeable
interchangeable cross-reference
interchangeable
105783Interchangeable
interchangeable cross-reference
interchangeable
105564Interchangeable
interchangeable cross-reference
interchangeable
00185Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 00185?
00185 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace 00185?
There are 7 known substitutes for 00185: 0018-4, 0018-1, 0018 and 4 more. Substitute compatibility should be verified for your specific system.
Is 00185 still available?
00185 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026