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455978 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

455978: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, grip_length: 1.125 INCHES NOMINAL IN, head_height: 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN, thread_class: 2A A, grip_diameter: 0.4305 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-657-8076, 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
455978
NSN: 5306-01-657-8076
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
grip_length1.125 INCHES NOMINAL IN
head_height0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
thread_class2A A
grip_diameter0.4305 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN
thread_length1.125 INCHES NOMINAL IN
fastener_length2.25 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_between_flats0.6120 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
end_item_identification2520-01-655-8112
nominal_thread_diameter0.4375 INCHES IN
NSN5306-01-657-8076
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 455978 · 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 HEIGHT: 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.25 INCHES NOMINAL IN
•
THREAD LENGTH: 1.125 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.4375 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
GRIP LENGTH: 1.125 INCHES NOMINAL IN
•
WIDTH BETWEEN FLATS: 0.6120 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
FASTENER LENGTH2.25 INCHES NOMINAL IN
THREAD LENGTH1.125 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.4375 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH1.125 INCHES NOMINAL IN
WIDTH BETWEEN FLATS0.6120 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
GRIP DIAMETER0.4305 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYTYPE AA HEXAGON LOCK BOLT
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 455978?
455978 is a BOLT,MACHINE.
What is the NSN for 455978?
455978 is cataloged in the U.S. Government catalog under NSN 5306-01-657-8076. This indicates validated use in U.S. government and defense supply chains.
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