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11579943 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

11579943: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: PAN NO. 2, head_height: 0.320 INCHES NOMINAL IN, head_diameter: 0.316 INCHES NOMINAL IN, thread_length: 0.312 INCHES NOMINAL IN, shoulder_shape: ROUND ALL SHOULDERS.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-441-4148, 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
11579943
NSN: 5305-01-441-4148
FSC: 5305 — Screws
CAGE: 19206 — ARMY, UNITED STATES DEPARTMENT OF THE DBA WATERVLIET ARSENAL DIV BUSINESS DEVELOPMENT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_stylePAN NO. 2
head_height0.320 INCHES NOMINAL IN
head_diameter0.316 INCHES NOMINAL IN
thread_length0.312 INCHES NOMINAL IN
shoulder_shapeROUND ALL SHOULDERS
fastener_length0.620 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
end_item_identificationUSED ON MORTAR 81MM,XM252 MM
thread_series_designatorUNF
NSN5305-01-441-4148
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 11579943 · 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: 0.320 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.620 INCHES NOMINAL IN
•
THREAD LENGTH: 0.312 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND ALL SHOULDERS
•
HEAD STYLE: PAN NO. 2
•
THREAD DIRECTION: RIGHT-HAND
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.320 INCHES NOMINAL IN
FASTENER LENGTH0.620 INCHES NOMINAL IN
THREAD LENGTH0.312 INCHES NOMINAL IN
SHOULDER SHAPEROUND ALL SHOULDERS
HEAD STYLEPAN NO. 2
THREAD DIRECTIONRIGHT-HAND
INTERNAL DRIVE STYLESLOT
END ITEM IDENTIFICATIONUSED ON MORTAR 81MM,XM252 MM
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNF
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 demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 11579943?
11579943 is a SCREW,SHOULDER.
What is the NSN for 11579943?
11579943 is cataloged in the U.S. Government catalog under NSN 5305-01-441-4148. 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.