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497A50011-1 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

497A50011-1: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 1.440 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.750 INCHES NOMINAL IN, screw_material: NICKEL ALLOY, fastener_length: 0.810 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-418-5958, 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
497A50011-1
NSN: 5305-01-418-5958
FSC: 5305 — Screws
CAGE: 38597 — LOCKHEED MARTIN CORPORATION DIV ROTARY AND MISSION SYSTEMS (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height1.440 INCHES NOMINAL IN
thread_class2A A
thread_length0.750 INCHES NOMINAL IN
screw_materialNICKEL ALLOY
fastener_length0.810 INCHES NOMINAL IN
special_featuresSMALL CROWNED IN CENTER OF HEXAGON HEAD
thread_directionRIGHT-HAND
width_between_flats0.500 INCHES NOMINAL IN
internal_drive_styleW/O INTERNAL DRIVE
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inchA20
NSN5305-01-418-5958
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 497A50011-1 · 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: 1.440 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.810 INCHES NOMINAL IN
•
THREAD LENGTH: 0.750 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.500 INCHES NOMINAL IN
•
SCREW MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
HEAD HEIGHT1.440 INCHES NOMINAL IN
FASTENER LENGTH0.810 INCHES NOMINAL IN
THREAD LENGTH0.750 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.500 INCHES NOMINAL IN
SCREW MATERIALNICKEL ALLOY
SPECIAL FEATURESSMALL CROWNED IN CENTER OF HEXAGON HEAD
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
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 497A50011-1?
497A50011-1 is a SCREW,MACHINE.
What is the NSN for 497A50011-1?
497A50011-1 is cataloged in the U.S. Government catalog under NSN 5305-01-418-5958. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.