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315059 — THUMBSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

315059: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1117 OVERALL, point_style: CHAMFER DOG, point_length: 0.075 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.500 INCHES NOMINAL IN, point_diameter: 0.255 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-277-4337, 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
315059
NSN: 5305-01-277-4337
FSC: 5305 — Screws
CAGE: 1UVT5 — BRP US INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1117 OVERALL
point_styleCHAMFER DOG
point_length0.075 INCHES NOMINAL IN
thread_class2A A
thread_length0.500 INCHES NOMINAL IN
point_diameter0.255 INCHES NOMINAL IN
fastener_length0.750 INCHES NOMINAL IN
special_features64 DIAMETRAL PITCH STRAIGHT KNURL AFTER GROOVE; .325 DIA MIN. AFTER HEAD KNURL
thread_directionRIGHT-HAND
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch24
thread_series_designatorUNF
NSN5305-01-277-4337
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 315059 · 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
•
POINT DIAMETER: 0.255 INCHES NOMINAL IN
•
POINT LENGTH: 0.075 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.750 INCHES NOMINAL IN
•
THREAD LENGTH: 0.500 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1117 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
POINT STYLE: CHAMFER DOG
TECHNICAL CHARACTERISTICS
POINT DIAMETER0.255 INCHES NOMINAL IN
POINT LENGTH0.075 INCHES NOMINAL IN
FASTENER LENGTH0.750 INCHES NOMINAL IN
THREAD LENGTH0.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1117 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
THREAD DIRECTIONRIGHT-HAND
POINT STYLECHAMFER DOG
SPECIAL FEATURES64 DIAMETRAL PITCH STRAIGHT KNURL AFTER GROOVE; .325 DIA MIN. AFTER HEAD KNURL
THREAD CLASS2A A
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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 315059?
315059 is a THUMBSCREW.
What is the NSN for 315059?
315059 is cataloged in the U.S. Government catalog under NSN 5305-01-277-4337. 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.