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ST3M430V6-18AS — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

ST3M430V6-18AS: 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 UNDERCUT, grip_length: 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN, head_height: 0.115 INCHES MINIMUM AND 0.117 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-132-2175, 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
ST3M430V6-18AS
NSN: 5305-01-132-2175
FSC: 5305 — Screws
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialTITANIUM ALLOY UNS R54520 OVERALL
head_styleFLAT COUNTERSUNK UNDERCUT
grip_length1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN
head_height0.115 INCHES MINIMUM AND 0.117 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN
head_diameter0.756 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
thread_length0.615 INCHES MINIMUM AND 0.682 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES THREADS
fastener_length1.750 INCHES MINIMUM AND 1.797 INCHES MAXIMUM IN
special_featuresFURNISH WITH ONE O RING
thread_directionRIGHT-HAND
NSN5305-01-132-2175
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ST3M430V6-18AS · 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
•
HEAD HEIGHT: 0.115 INCHES MINIMUM AND 0.117 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.750 INCHES MINIMUM AND 1.797 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.615 INCHES MINIMUM AND 0.682 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: NAS621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK UNDERCUT
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH32.0 MICROINCHES GRIP
HEAD HEIGHT0.115 INCHES MINIMUM AND 0.117 INCHES MAXIMUM IN
FASTENER LENGTH1.750 INCHES MINIMUM AND 1.797 INCHES MAXIMUM IN
THREAD LENGTH0.615 INCHES MINIMUM AND 0.682 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONNAS621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEFLAT COUNTERSUNK UNDERCUT
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH1.115 INCHES MINIMUM AND 1.135 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 5
BM33024V6-18UReference document
Same NSN cross-reference
Reference document — Secondary reference
HT271A6-18Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
110179-6-18ASSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
HT8137-6-18ASReference document
Same NSN cross-reference
Reference document — Secondary reference
10115319Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST3M430V6-18AS?
ST3M430V6-18AS is a SCREW,CLOSE TOLERANCE.
What parts can replace ST3M430V6-18AS?
There are 5 known substitutes for ST3M430V6-18AS: BM33024V6-18U, HT271A6-18, 110179-6-18AS and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST3M430V6-18AS?
ST3M430V6-18AS is cataloged in the U.S. Government catalog under NSN 5305-01-132-2175. 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.