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3276977-2 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3276977-2: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, fastener_length: 1.250 INCHES NOMINAL IN, locking_feature: STRIP, internal_drive_style: CROSS RECESS TYPE II, end_item_identification: TRIDENT II NAVIGATION SUBMARINE SYSTEMS, nominal_thread_diameter: 0.138 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-284-6044, 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
3276977-2
NSN: 5305-01-284-6044
FSC: 5305 — Screws
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
fastener_length1.250 INCHES NOMINAL IN
locking_featureSTRIP
internal_drive_styleCROSS RECESS TYPE II
end_item_identificationTRIDENT II NAVIGATION SUBMARINE SYSTEMS
nominal_thread_diameter0.138 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNF
NSN5305-01-284-6044
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3276977-2 · 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: 1.250 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
LOCKING FEATURE: STRIP
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE II
•
THREAD QUANTITY PER INCH: 32
•
THREAD SERIES DESIGNATOR: UNF
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.250 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
LOCKING FEATURESTRIP
INTERNAL DRIVE STYLECROSS RECESS TYPE II
END ITEM IDENTIFICATIONTRIDENT II NAVIGATION SUBMARINE SYSTEMS
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNF
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
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FREQUENTLY ASKED QUESTIONS
What is 3276977-2?
3276977-2 is a SCREW,MACHINE.
What is the NSN for 3276977-2?
3276977-2 is cataloged in the U.S. Government catalog under NSN 5305-01-284-6044. 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.