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490196 — BOLT,SQUARE NECK

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

490196: BOLT,SQUARE NECK.

The BOLT,SQUARE NECK is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: FLAT CHAMFER, neck_width: 0.276 INCHES MINIMUM AND 0.278 INCHES MAXIMUM IN, head_height: 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN, neck_length: 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN, thread_class: 3A A. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-949-4068, 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
490196
NSN: 5306-00-949-4068
FSC: 5306 — Bolts
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleFLAT CHAMFER
neck_width0.276 INCHES MINIMUM AND 0.278 INCHES MAXIMUM IN
head_height0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
neck_length0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.530 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN
thread_length0.410 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
fastener_length0.540 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN
hardness_rating30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
nominal_thread_diameter0.250 INCHES IN
NSN5306-00-949-4068
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 490196 · 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
•
NECK LENGTH: 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.540 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.410 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
NECK LENGTH0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
HEAD HEIGHT0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
FASTENER LENGTH0.540 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN
THREAD LENGTH0.410 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
NECK WIDTH0.276 INCHES MINIMUM AND 0.278 INCHES MAXIMUM IN
THREAD CLASS3A A
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 490196?
490196 is a BOLT,SQUARE NECK.
What is the NSN for 490196?
490196 is cataloged in the U.S. Government catalog under NSN 5306-00-949-4068. 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.