PartsTable
Technical Data Sheet
Download PDF

256X5-16FH100DGSSP — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

256X5-16FH100DGSSP: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, screw_material: STEEL CORROSION RESISTING, fastener_length: 0.313 INCHES NOMINAL IN, countersink_angle: 100.0 DEGREES NOMINAL, internal_drive_style: CLUTCH TYPE I, nominal_thread_diameter: 2.560 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-291-3987, 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
256X5-16FH100DGSSP
NSN: 5305-01-291-3987
FSC: 5305 — Screws
CAGE: 70318 — ALLMETAL SCREW PRODUCTS CORP (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
screw_materialSTEEL CORROSION RESISTING
fastener_length0.313 INCHES NOMINAL IN
countersink_angle100.0 DEGREES NOMINAL
internal_drive_styleCLUTCH TYPE I
nominal_thread_diameter2.560 INCHES IN
screw_surface_treatmentPASSIVATE
thread_series_designatorUN
NSN5305-01-291-3987
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 256X5-16FH100DGSSP · 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
•
SCREW SURFACE TREATMENT: PASSIVATE
•
FASTENER LENGTH: 0.313 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 2.560 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
SCREW MATERIAL: STEEL CORROSION RESISTING
•
INTERNAL DRIVE STYLE: CLUTCH TYPE I
•
COUNTERSINK ANGLE: 100.0 DEGREES NOMINAL
•
THREAD SERIES DESIGNATOR: UN
TECHNICAL CHARACTERISTICS
SCREW SURFACE TREATMENTPASSIVATE
FASTENER LENGTH0.313 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER2.560 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
SCREW MATERIALSTEEL CORROSION RESISTING
INTERNAL DRIVE STYLECLUTCH TYPE I
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
THREAD SERIES DESIGNATORUN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 256X5-16FH100DGSSP?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 256X5-16FH100DGSSP?
256X5-16FH100DGSSP is a SCREW,MACHINE.
What is the NSN for 256X5-16FH100DGSSP?
256X5-16FH100DGSSP is cataloged in the U.S. Government catalog under NSN 5305-01-291-3987. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 256X5-16FH100DGSSP

✓ 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.