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641040-1 — SETSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

641040-1: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1010 OVERALL, head_style: FILLISTER, head_height: 0.161 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN, point_style: DOG, point_length: 0.188 INCHES NOMINAL IN, thread_class: 2A A. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-017-4256, 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
641040-1
NSN: 5305-00-017-4256
FSC: 5305 — Screws
CAGE: 22907 — HELIGEAR ACQUISITION CO. DBA NORTHSTAR AEROSPACE, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OVERALL
head_styleFILLISTER
head_height0.161 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
point_styleDOG
point_length0.188 INCHES NOMINAL IN
thread_class2A A
head_diameter0.389 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN
thread_length0.327 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN
point_diameter0.155 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN
fastener_length0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
NSN5305-00-017-4256
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 641040-1 · 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
•
POINT DIAMETER: 0.155 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.161 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
•
POINT LENGTH: 0.188 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.327 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FILLISTER
TECHNICAL CHARACTERISTICS
POINT DIAMETER0.155 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN
HEAD HEIGHT0.161 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
POINT LENGTH0.188 INCHES NOMINAL IN
FASTENER LENGTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.327 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFILLISTER
THREAD DIRECTIONRIGHT-HAND
POINT STYLEDOG
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 641040-1?
641040-1 is a SETSCREW.
What is the NSN for 641040-1?
641040-1 is cataloged in the U.S. Government catalog under NSN 5305-00-017-4256. This indicates validated use in U.S. government and defense supply chains.
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