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CS318642V6-22 — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

CS318642V6-22: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY UNS R54520 OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN, head_diameter: 0.645 INCHES MINIMUM AND 0.673 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-152-5307, 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
CS318642V6-22
NSN: 5305-00-152-5307
FSC: 5305 — Screws
CAGE: 93907 — TEXTRON FASTENING SYSTEMS DBA DECORAH OPERATIONS TFS (USA)
SPECIFICATIONS
materialTITANIUM ALLOY UNS R54520 OVERALL
head_styleFLAT COUNTERSUNK
grip_length1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN
head_diameter0.645 INCHES MINIMUM AND 0.673 INCHES MAXIMUM IN
thread_length0.469 INCHES MINIMUM AND 0.519 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES GRIP
fastener_length1.854 INCHES MINIMUM AND 1.884 INCHES MAXIMUM IN
special_featuresBEARING SURFACE OF HEAD GROOVED TO 0.472 IN. MIN 0.474 IN. MAX DIA,0.115 IN. MIN 0.120 IN. MAX LG FROM TOP OF HEAD IN
thread_directionRIGHT-HAND
countersink_angle60.15 DEGREES NOMINAL
NSN5305-00-152-5307
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: CS318642V6-22 · 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
•
SURFACE FINISH: 32.0 MICROINCHES THREADS
•
FASTENER LENGTH: 1.854 INCHES MINIMUM AND 1.884 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.469 INCHES MINIMUM AND 0.519 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: NAS621,COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL V
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH32.0 MICROINCHES GRIP
FASTENER LENGTH1.854 INCHES MINIMUM AND 1.884 INCHES MAXIMUM IN
THREAD LENGTH0.469 INCHES MINIMUM AND 0.519 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONNAS621,COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL V
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN
GRIP DIAMETER0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN
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 4
C387V6-22Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
AIC1023V6-22Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
64040V6-22Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VT1039V6-22Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is CS318642V6-22?
CS318642V6-22 is a SCREW,CLOSE TOLERANCE.
What parts can replace CS318642V6-22?
There are 4 known substitutes for CS318642V6-22: C387V6-22, AIC1023V6-22, 64040V6-22 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CS318642V6-22?
CS318642V6-22 is cataloged in the U.S. Government catalog under NSN 5305-00-152-5307. 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.