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A226953 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A226953: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: ROUND W/WRENCH FLATS, head_height: 0.250 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 1.250 INCHES NOMINAL IN, thread_length: 0.938 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-522-6953, 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
A226953
NSN: 5306-00-522-6953
FSC: 5306 — Bolts
CAGE: 00000
SPECIFICATIONS
materialSTEEL OVERALL
head_styleROUND W/WRENCH FLATS
head_height0.250 INCHES NOMINAL IN
thread_class3A A
head_diameter1.250 INCHES NOMINAL IN
thread_length0.938 INCHES MINIMUM IN
shoulder_shapeROUND FASTENER
fastener_length8.000 INCHES NOMINAL IN
shoulder_length1.938 INCHES NOMINAL FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.620 INCHES MINIMUM AND 0.625 INCHES MAXIMUM SECOND SHOULDER IN
surface_treatmentPHOSPHATE OVERALL
NSN5306-00-522-6953
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A226953 · 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
•
HEAD HEIGHT: 0.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 8.000 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.125 INCHES NOMINAL SECOND SHOULDER IN
•
SHOULDER DIAMETER: 0.620 INCHES MINIMUM AND 0.625 INCHES MAXIMUM SECOND SHOULDER IN
•
THREAD LENGTH: 0.938 INCHES MINIMUM IN
•
SHOULDER SHAPE: ROUND FASTENER
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.250 INCHES NOMINAL IN
FASTENER LENGTH8.000 INCHES NOMINAL IN
SHOULDER LENGTH0.125 INCHES NOMINAL SECOND SHOULDER IN
SHOULDER LENGTH1.938 INCHES NOMINAL FIRST SHOULDER IN
SHOULDER DIAMETER0.620 INCHES MINIMUM AND 0.625 INCHES MAXIMUM SECOND SHOULDER IN
SHOULDER DIAMETER0.870 INCHES MINIMUM AND 0.875 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH0.938 INCHES MINIMUM IN
SHOULDER SHAPEROUND FASTENER
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD STYLEROUND W/WRENCH FLATS
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A226953?
A226953 is a BOLT,SHOULDER.
What is the NSN for A226953?
A226953 is cataloged in the U.S. Government catalog under NSN 5306-00-522-6953. 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.