PartsTable
Technical Data Sheet
AN78A32 ✓ 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 BOLT,MACHINE is a the manufacturer industrial component. Key specifications include hole_type: DRILLED, head_style: HEXAGON, grip_length: 2.500 INCHES NOMINAL IN, head_height: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN, thread_class: 3A A, hole_diameter: 0.070 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-182-1393, 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
AN78A32
NSN: 5306-00-182-1393
FSC: 5306
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4037 OR STEEL COMP 4140 OR STEEL COMP 4130 OVERALL
hole_typeDRILLED
head_styleHEXAGON
grip_length2.500 INCHES NOMINAL IN
head_height0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
thread_class3A A
hole_diameter0.070 INCHES NOMINAL IN
hole_quantity6
thread_length0.797 INCHES MINIMUM IN
fastener_length3.297 INCHES NOMINAL IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
NSN5306-00-182-1393
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN78A32 · 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
FASTENER LENGTH: 3.297 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
THREAD LENGTH: 0.797 INCHES MINIMUM IN
HOLE TYPE: DRILLED
HOLE QUANTITY: 6
HEAD HEIGHT: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
MINIMUM TENSILE STRENGTH: 125000 POUNDS PER SQUARE INCH LBS
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
FASTENER LENGTH3.297 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.500 INCHES IN
THREAD LENGTH0.797 INCHES MINIMUM IN
HOLE TYPEDRILLED
HOLE QUANTITY6
HEAD HEIGHT0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH LBS
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
WIDTH BETWEEN FLATS0.741 INCHES MINIMUM AND 0.751 INCHES MAXIMUM IN
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
AN4-31AUpgraded Successor
successor cross-reference
successor
5306PL0961538Upgraded Successor
successor cross-reference
successor
MILB6812AAMEND2Upgraded Successor
successor cross-reference
successor
AN5-31AUpgraded Successor
successor cross-reference
successor
AN5-30AUpgraded Successor
successor cross-reference
successor
AN5-24AUpgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN78A32?
AN78A32 is a BOLT,MACHINE.
What parts can replace AN78A32?
There are 15 known substitutes for AN78A32: AN4-31A, 5306PL0961538, MILB6812AAMEND2 and 12 more. Substitute compatibility should be verified for your specific system.
Is AN78A32 still available?
AN78A32 is currently cancelled.
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