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CA2730-4-19 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

CA2730-4-19: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include head_style: FLAT CHAMFER, head_height: 0.253 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.3742 INCHES MINIMUM AND 0.3747 INCHES MAXIMUM IN, thread_length: 0.270 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN, fastener_length: 1.646 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-061-9136, 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
CA2730-4-19
NSN: 5305-00-061-9136
FSC: 5305 — Screws
CAGE: 29372 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS (USA)
SPECIFICATIONS
head_styleFLAT CHAMFER
head_height0.253 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.3742 INCHES MINIMUM AND 0.3747 INCHES MAXIMUM IN
thread_length0.270 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
fastener_length1.646 INCHES NOMINAL IN
width_across_flats0.1875 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
shank_unthreaded_hole_diameter0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN
NSN5305-00-061-9136
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: CA2730-4-19 · 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
•
WIDTH ACROSS FLATS: 0.1875 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.253 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.646 INCHES NOMINAL IN
•
THREAD LENGTH: 0.270 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN
•
HEAD STYLE: FLAT CHAMFER
•
THREAD CLASS: 3A A
•
HEAD DIAMETER: 0.3742 INCHES MINIMUM AND 0.3747 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.1875 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
HEAD HEIGHT0.253 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN
FASTENER LENGTH1.646 INCHES NOMINAL IN
THREAD LENGTH0.270 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
SHANK UNTHREADED HOLE DIAMETER0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN
HEAD STYLEFLAT CHAMFER
THREAD CLASS3A A
HEAD DIAMETER0.3742 INCHES MINIMUM AND 0.3747 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 1
CC00035-4-19Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 CA2730-4-19?
CA2730-4-19 is a SCREW,CAP,SOCKET HEAD.
What parts can replace CA2730-4-19?
There is 1 known substitute for CA2730-4-19: CC00035-4-19. Substitute compatibility should be verified for your specific system.
What is the NSN for CA2730-4-19?
CA2730-4-19 is cataloged in the U.S. Government catalog under NSN 5305-00-061-9136. 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.