PartsTable
Technical Data Sheet
AN505-4R8 ✓ 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 SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.200 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN, thread_length: 0.450 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, screw_material: STEEL OR STEEL COMP 1010, fastener_length: 0.500 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-156-2861, 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
AN505-4R8
NSN: 5305-00-156-2861
FSC: 5305
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class2A A
head_diameter0.200 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN
thread_length0.450 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
screw_materialSTEEL OR STEEL COMP 1010
fastener_length0.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.112 INCHES IN
screw_surface_treatmentCADMIUM
minimum_tensile_strength55000 POUNDS PER SQUARE INCH LBS
NSN5305-00-156-2861
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN505-4R8 · 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
SCREW MATERIAL: STEEL OR STEEL COMP 1010
MINIMUM TENSILE STRENGTH: 55000 POUNDS PER SQUARE INCH LBS
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
HEAD DIAMETER: 0.200 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN
COUNTERSINK ANGLE: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
THREAD DIRECTION: RIGHT-HAND
HEAD STYLE: FLAT COUNTERSUNK
TECHNICAL CHARACTERISTICS (FLIS)
SCREW MATERIALSTEEL OR STEEL COMP 1010
MINIMUM TENSILE STRENGTH55000 POUNDS PER SQUARE INCH LBS
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
HEAD DIAMETER0.200 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
NOMINAL THREAD DIAMETER0.112 INCHES IN
THREAD DIRECTIONRIGHT-HAND
HEAD STYLEFLAT COUNTERSUNK
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
ST671Interchangeable
interchangeable cross-reference
interchangeable
3024592-2Interchangeable
interchangeable cross-reference
interchangeable
007-675248Interchangeable
interchangeable cross-reference
interchangeable
117548Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN505-4R8?
AN505-4R8 is a SCREW,MACHINE.
What parts can replace AN505-4R8?
There are 4 known substitutes for AN505-4R8: ST671, 3024592-2, 007-675248 and 1 more. Substitute compatibility should be verified for your specific system.
Is AN505-4R8 still available?
AN505-4R8 is currently cancelled.
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