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NAS608C256-2 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

NAS608C256-2: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: FLAT CHAMFER, head_height: 0.083 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.136 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN, thread_length: 0.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-982-9527, 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
NAS608C256-2
NSN: 5305-00-982-9527
FSC: 5305 — Screws
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleFLAT CHAMFER
head_height0.083 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.136 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
thread_length0.125 INCHES NOMINAL IN
fastener_length0.125 INCHES NOMINAL IN
hardness_rating80.0 ROCKWELL B NOMINAL OVERALL
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.063 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
NSN5305-00-982-9527
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: NAS608C256-2 · 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
•
WIDTH ACROSS FLATS: 0.063 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.083 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.125 INCHES NOMINAL IN
•
THREAD LENGTH: 0.125 INCHES NOMINAL IN
•
HARDNESS RATING: 80.0 ROCKWELL B NOMINAL OVERALL
•
NOMINAL THREAD DIAMETER: 0.086 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.063 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
HEAD HEIGHT0.083 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN
FASTENER LENGTH0.125 INCHES NOMINAL IN
THREAD LENGTH0.125 INCHES NOMINAL IN
HARDNESS RATING80.0 ROCKWELL B NOMINAL OVERALL
NOMINAL THREAD DIAMETER0.086 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTPASSIVATE OVERALL
MINIMUM YIELD STRENGTH30000 POUNDS PER SQUARE INCH LBS
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 1
949014-0305Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NAS608C256-2?
NAS608C256-2 is a SCREW,CAP,SOCKET HEAD.
What parts can replace NAS608C256-2?
There is 1 known substitute for NAS608C256-2: 949014-0305. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS608C256-2?
NAS608C256-2 is cataloged in the U.S. Government catalog under NSN 5305-00-982-9527. 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.