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820644-2 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

820644-2: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: DOUBLE HEXAGON W/HOLE, grip_length: 0.500 INCHES NOMINAL IN, head_height: 0.504 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.905 INCHES MINIMUM AND 0.935 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-598-6599, 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
820644-2
NSN: 5306-01-598-6599
FSC: 5306 — Bolts
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleDOUBLE HEXAGON W/HOLE
grip_length0.500 INCHES NOMINAL IN
head_height0.504 INCHES NOMINAL IN
thread_class3A A
thread_length0.905 INCHES MINIMUM AND 0.935 INCHES MAXIMUM IN
fastener_length1.405 INCHES MINIMUM AND 1.435 INCHES MAXIMUM IN
special_features0.094 IN. NOMINAL LENGTH FROM TOP HEAD, 0.050 - 0.060 IN. NOMNIAL HOLE DIA. (QTY.4), USE FOR SAFETY WIRE IN
thread_directionRIGHT-HAND
features_providedDRY FILM LUBRICANT
width_between_flats0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
end_item_identificationE-2C AIRCRAFT
NSN5306-01-598-6599
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 820644-2 · 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
•
EXTENDED WASHER THICKNESS: 0.123 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.504 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.405 INCHES MINIMUM AND 1.435 INCHES MAXIMUM IN
•
EXTENDED WASHER DIAMETER: 0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.905 INCHES MINIMUM AND 0.935 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5726 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
FEATURES PROVIDED: DRY FILM LUBRICANT
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.123 INCHES NOMINAL IN
HEAD HEIGHT0.504 INCHES NOMINAL IN
FASTENER LENGTH1.405 INCHES MINIMUM AND 1.435 INCHES MAXIMUM IN
EXTENDED WASHER DIAMETER0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
THREAD LENGTH0.905 INCHES MINIMUM AND 0.935 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5726 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
FEATURES PROVIDEDDRY FILM LUBRICANT
HEAD STYLEDOUBLE HEXAGON W/HOLE
THREAD DIRECTIONRIGHT-HAND
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 820644-2?
820644-2 is a BOLT,MACHINE.
What is the NSN for 820644-2?
820644-2 is cataloged in the U.S. Government catalog under NSN 5306-01-598-6599. This indicates validated use in U.S. government and defense supply chains.
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