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90311A163 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

90311A163: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, head_style: KNURLED NO. 1, head_height: 0.218 INCHES NOMINAL IN, thread_class: 3A A, handle_length: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN, head_diameter: 0.437 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-655-5137, 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
90311A163
NSN: 5305-01-655-5137
FSC: 5305 — Screws
CAGE: 2V507 — MCMASTER-CARR SUPPLY COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
head_styleKNURLED NO. 1
head_height0.218 INCHES NOMINAL IN
thread_class3A A
handle_length0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
head_diameter0.437 INCHES NOMINAL IN
thread_length0.437 INCHES NOMINAL IN
shoulder_shapeROUND GRIP
fastener_length0.656 INCHES NOMINAL IN
handle_diameter0.312 INCHES NOMINAL IN
locking_featurePATCH THREADS
shoulder_length0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM GRIP IN
NSN5305-01-655-5137
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 90311A163 · 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 NOMINAL IN
•
HEAD HEIGHT: 0.218 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.656 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM GRIP IN
•
HANDLE LENGTH: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.312 INCHES NOMINAL GRIP IN
•
THREAD LENGTH: 0.437 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND GRIP
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.156 INCHES NOMINAL IN
HEAD HEIGHT0.218 INCHES NOMINAL IN
FASTENER LENGTH0.656 INCHES NOMINAL IN
SHOULDER LENGTH0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM GRIP IN
HANDLE LENGTH0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
SHOULDER DIAMETER0.312 INCHES NOMINAL GRIP IN
THREAD LENGTH0.437 INCHES NOMINAL IN
SHOULDER SHAPEROUND GRIP
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEKNURLED NO. 1
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

No substitute or cross-reference records for this part.

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 90311A163?
90311A163 is a SCREW,SHOULDER.
What is the NSN for 90311A163?
90311A163 is cataloged in the U.S. Government catalog under NSN 5305-01-655-5137. 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.