PartsTable
Technical Data Sheet
1843646 ✓ Verified by PartsTable
· BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.685 INCHES MINIMUM AND 0.762 INCHES MAXIMUM IN, thread_length: 0.667 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, screw_material: STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1013, fastener_length: 0.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-959-4157, 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
1843646
NSN: 5305-00-959-4157
FSC: 5305
CAGE: 1LW55 — BORGWARNER PDS (ANDERSON), L.L.C. (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class2A A
head_diameter0.685 INCHES MINIMUM AND 0.762 INCHES MAXIMUM IN
thread_length0.667 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
screw_materialSTEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1013
fastener_length0.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.375 INCHES IN
screw_surface_treatmentCADMIUM AND CHROMATE
minimum_tensile_strength55000 POUNDS PER SQUARE INCH LBS
NSN5305-00-959-4157
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1843646 · 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
COUNTERSINK ANGLE: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES
SCREW MATERIAL: STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1013
HEAD STYLE: FLAT COUNTERSUNK
THREAD CLASS: 2A A
THREAD DIRECTION: RIGHT-HAND
FASTENER LENGTH: 0.750 INCHES NOMINAL IN
MINIMUM TENSILE STRENGTH: 55000 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS (FLIS)
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES
SCREW MATERIALSTEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1013
HEAD STYLEFLAT COUNTERSUNK
THREAD CLASS2A A
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.750 INCHES NOMINAL IN
MINIMUM TENSILE STRENGTH55000 POUNDS PER SQUARE INCH LBS
SCREW MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES
THREAD LENGTH0.667 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
34344Interchangeable
interchangeable cross-reference
interchangeable
34534Interchangeable
interchangeable cross-reference
interchangeable
5215 007Interchangeable
interchangeable cross-reference
interchangeable
5215X007Interchangeable
interchangeable cross-reference
interchangeable
43OBJInterchangeable
interchangeable cross-reference
interchangeable
828675Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1843646?
1843646 is a SCREW,MACHINE.
What parts can replace 1843646?
There are 8 known substitutes for 1843646: 34344, 34534, 5215 007 and 5 more. Substitute compatibility should be verified for your specific system.
Is 1843646 still available?
1843646 is currently cancelled.
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