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F0405 1-2SS — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

F0405 1-2SS: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.212 INCHES MINIMUM AND 0.216 INCHES MAXIMUM IN, thread_length: 0.209 INCHES NOMINAL IN, screw_material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 316, fastener_length: 0.344 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-207-4276, 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
F0405 1-2SS
NSN: 5305-00-207-4276
FSC: 5305 — Screws
CAGE: 55972 — HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class3A A
head_diameter0.212 INCHES MINIMUM AND 0.216 INCHES MAXIMUM IN
thread_length0.209 INCHES NOMINAL IN
screw_materialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 316
fastener_length0.344 INCHES NOMINAL IN
thread_directionRIGHT-HAND
countersink_angle82.0 DEGREES NOMINAL
internal_drive_styleSLOT
nominal_thread_diameter0.112 INCHES IN
thread_quantity_per_inch40
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-00-207-4276
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: F0405 1-2SS · 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: 0.344 INCHES NOMINAL IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7720 MIL SPEC ALL MATERIAL RESPONSES
•
THREAD LENGTH: 0.209 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 316
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS
FASTENER LENGTH0.344 INCHES NOMINAL IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720 MIL SPEC ALL MATERIAL RESPONSES
THREAD LENGTH0.209 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 316
INTERNAL DRIVE STYLESLOT
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
THREAD CLASS3A 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 1
250-405 1-2SSSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is F0405 1-2SS?
F0405 1-2SS is a SCREW,MACHINE.
What parts can replace F0405 1-2SS?
There is 1 known substitute for F0405 1-2SS: 250-405 1-2SS. Substitute compatibility should be verified for your specific system.
What is the NSN for F0405 1-2SS?
F0405 1-2SS is cataloged in the U.S. Government catalog under NSN 5305-00-207-4276. 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.