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NAS1351C3H8 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

NAS1351C3H8: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-7 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL, hole_type: DRILLED, head_style: FLAT CHAMFER, head_height: 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-528-5293, 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
NAS1351C3H8
NSN: 5305-00-528-5293
FSC: 5305 — Screws
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL COMP XM-7 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL
hole_typeDRILLED
head_styleFLAT CHAMFER
head_height0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
hole_diameter0.044 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
hole_quantity6
thread_length0.422 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
fastener_length0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
hardness_rating80.0 ROCKWELL B MINIMUM OVERALL
thread_directionRIGHT-HAND
NSN5305-00-528-5293
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: NAS1351C3H8 · 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: 0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.422 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
•
HARDNESS RATING: 80.0 ROCKWELL B MINIMUM OVERALL
•
HOLE CONFIGURATION STYLE: ROUND LONGITUDINAL HOLE
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
HEAD HEIGHT0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
FASTENER LENGTH0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.422 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
HARDNESS RATING80.0 ROCKWELL B MINIMUM OVERALL
HOLE CONFIGURATION STYLEROUND LONGITUDINAL HOLE
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
SUBSTITUTES & CROSS-REFERENCES 2
10125359Reference document
Same NSN cross-reference
Reference document — Informative reference only
FF-S-86Reference document
Same NSN cross-reference
Reference document — Identification 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 NAS1351C3H8?
NAS1351C3H8 is a SCREW,CAP,SOCKET HEAD.
What parts can replace NAS1351C3H8?
There are 2 known substitutes for NAS1351C3H8: 10125359, FF-S-86. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS1351C3H8?
NAS1351C3H8 is cataloged in the U.S. Government catalog under NSN 5305-00-528-5293. 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.