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509441G7 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

509441G7: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OR STEEL COMP E4340 OVERALL, head_style: FLAT CHAMFER, head_height: 0.190 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.313 INCHES MAXIMUM IN, thread_length: 0.875 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-151-8700, 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
509441G7
NSN: 5305-00-151-8700
FSC: 5305 — Screws
CAGE: 80020 — NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION JOINT BASE JBMDL (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OR STEEL COMP E4340 OVERALL
head_styleFLAT CHAMFER
head_height0.190 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.313 INCHES MAXIMUM IN
thread_length0.875 INCHES MAXIMUM IN
fastener_length0.875 INCHES NOMINAL IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
special_featuresROLLED THREADS
thread_directionRIGHT-HAND
width_across_flats0.156 INCHES NOMINAL IN
internal_drive_styleHEXAGON
NSN5305-00-151-8700
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 509441G7 · 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
•
WIDTH ACROSS FLATS: 0.156 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.190 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.875 INCHES NOMINAL IN
•
THREAD LENGTH: 0.875 INCHES MAXIMUM IN
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.156 INCHES NOMINAL IN
HEAD HEIGHT0.190 INCHES MAXIMUM IN
FASTENER LENGTH0.875 INCHES NOMINAL IN
THREAD LENGTH0.875 INCHES MAXIMUM IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
SPECIAL FEATURESROLLED THREADS
INTERNAL DRIVE STYLEHEXAGON
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 509441G7?
509441G7 is a SCREW,CAP,SOCKET HEAD.
What is the NSN for 509441G7?
509441G7 is cataloged in the U.S. Government catalog under NSN 5305-00-151-8700. 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.