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PartsTable / COMPONENT / AN505-8R12
AN505-8R12 ✓ 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: 0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN, thread_length: 0.688 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, screw_material: STEEL, fastener_length: 0.750 INCHES NOMINAL 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 5305-00-156-2841, 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
AN505-8R12
NSN: 5305-00-156-2841
FSC: 5305
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class2A A
head_diameter0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
thread_length0.688 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
screw_materialSTEEL
fastener_length0.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
internal_drive_styleCROSS RECESS TYPE 1
end_item_identificationMULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
nominal_thread_diameter0.164 INCHES IN
minimum_tensile_strength60000 POUNDS PER SQUARE INCH LBS
NSN5305-00-156-2841
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN505-8R12 · 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 DIAMETER: 0.300 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
•
THREAD CLASS: 2A A
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
THREAD LENGTH: 0.750 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
FASTENER LENGTH: 0.781 INCHES NOMINAL IN
•
COUNTERSINK ANGLE: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS (FLIS)
HEAD DIAMETER0.300 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
THREAD CLASS2A A
NOMINAL THREAD DIAMETER0.164 INCHES IN
THREAD LENGTH0.750 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.781 INCHES NOMINAL IN
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
HEAD STYLEFLAT COUNTERSUNK
SCREW MATERIALSTEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
AN505-8R12Interchangeable
interchangeable cross-reference
interchangeable
AN505-8R11Interchangeable
interchangeable cross-reference
interchangeable
8268Interchangeable
interchangeable cross-reference
interchangeable
FFS92ANDTYPE3ANDSTYLE2CInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN505-8R12?
AN505-8R12 is a SCREW,MACHINE.
What parts can replace AN505-8R12?
There are 4 known substitutes for AN505-8R12: AN505-8R12, AN505-8R11, 8268 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN505-8R12?
AN505-8R12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-156-2841. 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