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PartsTable / COMPONENT / 105783
105783 ✓ 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

CYLINDER ASSEMBLY,ACTUATING,LINE. Key specifications include head_style: HEXAGON, head_height: 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.681 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN, screw_material: STEEL CORROSION RESISTING, fastener_length: 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN. 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
105783
NSN: 5305-00-485-9256
FSC: 5305
CAGE: 59501 — UNISON INDUSTRIES LLC (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
thread_class3A A
thread_length0.681 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN
screw_materialSTEEL CORROSION RESISTING
fastener_length0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_between_flats0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
internal_drive_styleSLOT
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch28
thread_series_designatorUNF
NSN5305-00-485-9256
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 105783 · 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 105783?
105783 is a CYLINDER ASSEMBLY,ACTUATING,LINE.
What parts can replace 105783?
There are 7 known substitutes for 105783: 0018-4, 0018-1, 0018 and 4 more. Substitute compatibility should be verified for your specific system.
Is 105783 still available?
105783 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