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ST3M652C4-9D — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

ST3M652C4-9D: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT COUNTERSUNK UNDERCUT, grip_length: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN, head_height: 0.071 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-044-2244, 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
ST3M652C4-9D
NSN: 5305-01-044-2244
FSC: 5305 — Screws
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT COUNTERSUNK UNDERCUT
grip_length0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
head_height0.071 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
head_diameter0.502 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
thread_length0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES THREADS
fastener_length1.015 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN
special_featuresCETYL ALCOHOL LUBRICATION
thread_directionRIGHT-HAND
NSN5305-01-044-2244
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ST3M652C4-9D · 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: 0.071 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.015 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK UNDERCUT
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
HEAD HEIGHT0.071 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
FASTENER LENGTH1.015 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN
THREAD LENGTH0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFLAT COUNTERSUNK UNDERCUT
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 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 2
HT4020-4-9Reference document
Same NSN cross-reference
Reference document — Secondary reference
CHT4020Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST3M652C4-9D?
ST3M652C4-9D is a SCREW,CLOSE TOLERANCE.
What parts can replace ST3M652C4-9D?
There are 2 known substitutes for ST3M652C4-9D: HT4020-4-9, CHT4020. Substitute compatibility should be verified for your specific system.
What is the NSN for ST3M652C4-9D?
ST3M652C4-9D is cataloged in the U.S. Government catalog under NSN 5305-01-044-2244. 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.