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13047917 — THUMBSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

13047917: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, head_style: KNURLED NO. 1, head_height: 0.437 INCHES NOMINAL IN, point_style: FLAT, point_length: 0.031 INCHES NOMINAL IN, thread_class: 2A A.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-088-1966, 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
13047917
NSN: 5305-01-088-1966
FSC: 5305 — Screws
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
head_styleKNURLED NO. 1
head_height0.437 INCHES NOMINAL IN
point_styleFLAT
point_length0.031 INCHES NOMINAL IN
thread_class2A A
head_diameter1.250 INCHES NOMINAL IN
thread_length0.375 INCHES NOMINAL IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length1.250 INCHES NOMINAL IN
shoulder_length0.250 INCHES NOMINAL FIRST SHOULDER IN
thread_directionRIGHT-HAND
NSN5305-01-088-1966
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 13047917 · 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: 0.437 INCHES NOMINAL IN
•
POINT LENGTH: 0.031 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.250 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.250 INCHES NOMINAL FIRST SHOULDER IN
•
SHOULDER DIAMETER: 0.625 INCHES NOMINAL FIRST SHOULDER IN
•
THREAD LENGTH: 0.375 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
POINT CHAMFER ANGLE: 45.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.437 INCHES NOMINAL IN
POINT LENGTH0.031 INCHES NOMINAL IN
FASTENER LENGTH1.250 INCHES NOMINAL IN
SHOULDER LENGTH0.250 INCHES NOMINAL FIRST SHOULDER IN
SHOULDER DIAMETER0.625 INCHES NOMINAL FIRST SHOULDER IN
THREAD LENGTH0.375 INCHES NOMINAL IN
SHOULDER SHAPEROUND FIRST SHOULDER
POINT CHAMFER ANGLE45.0 DEGREES NOMINAL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEKNURLED NO. 1
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 13047917?
13047917 is a THUMBSCREW.
What is the NSN for 13047917?
13047917 is cataloged in the U.S. Government catalog under NSN 5305-01-088-1966. 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.