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4403533 PIECE 4 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4403533 PIECE 4: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.568 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN, thread_length: 1.005 INCHES MINIMUM AND 1.134 INCHES MAXIMUM IN, screw_material: STEEL COMP 304, fastener_length: 1.116 INCHES MINIMUM AND 1.134 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-353-7095, 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
4403533 PIECE 4
NSN: 5305-01-353-7095
FSC: 5305 — Screws
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class2A A
head_diameter0.568 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
thread_length1.005 INCHES MINIMUM AND 1.134 INCHES MAXIMUM IN
screw_materialSTEEL COMP 304
fastener_length1.116 INCHES MINIMUM AND 1.134 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
countersink_angle82.0 DEGREES NOMINAL
internal_drive_styleSLOT
end_item_identificationLOGISTICS SUPPORT VESSEL
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch18
NSN5305-01-353-7095
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4403533 PIECE 4 · 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
•
FASTENER LENGTH: 1.116 INCHES MINIMUM AND 1.134 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 1.005 INCHES MINIMUM AND 1.134 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL COMP 304
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.116 INCHES MINIMUM AND 1.134 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
THREAD LENGTH1.005 INCHES MINIMUM AND 1.134 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 304
INTERNAL DRIVE STYLESLOT
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
THREAD CLASS2A A
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
FF-S-92Reference document
Same NSN cross-reference
Reference document — Identification reference
5/16-18UNC-2AX1.250 IN.LG STLCRReference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 4403533 PIECE 4?
4403533 PIECE 4 is a SCREW,MACHINE.
What parts can replace 4403533 PIECE 4?
There are 2 known substitutes for 4403533 PIECE 4: FF-S-92, 5/16-18UNC-2AX1.250 IN.LG STLCR. Substitute compatibility should be verified for your specific system.
What is the NSN for 4403533 PIECE 4?
4403533 PIECE 4 is cataloged in the U.S. Government catalog under NSN 5305-01-353-7095. 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.