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EWSB22D9A33 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

EWSB22D9A33: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP H11 OVERALL, head_style: DOUBLE HEXAGON, grip_length: 2.052 INCHES MINIMUM AND 2.072 INCHES MAXIMUM IN, head_height: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.5607 INCHES MINIMUM AND 0.5616 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-385-5419, 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
EWSB22D9A33
NSN: 5306-00-385-5419
FSC: 5306 — Bolts
CAGE: 73197 — HI-SHEAR CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP H11 OVERALL
head_styleDOUBLE HEXAGON
grip_length2.052 INCHES MINIMUM AND 2.072 INCHES MAXIMUM IN
head_height0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.5607 INCHES MINIMUM AND 0.5616 INCHES MAXIMUM IN
thread_length0.564 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN
fastener_length2.636 INCHES MINIMUM AND 2.683 INCHES MAXIMUM IN
hardness_rating46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_between_flats0.865 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN
NSN5306-00-385-5419
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: EWSB22D9A33 · 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: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.636 INCHES MINIMUM AND 2.683 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.564 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.562 INCHES IN
•
HEAD STYLE: DOUBLE HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
FASTENER LENGTH2.636 INCHES MINIMUM AND 2.683 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.564 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.562 INCHES IN
HEAD STYLEDOUBLE HEXAGON
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH2.052 INCHES MINIMUM AND 2.072 INCHES MAXIMUM IN
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 4
BM17020-9A33Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
VS3071-9F33Reference document
Same NSN cross-reference
Reference document — Secondary reference
GB511B9-33Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
EWSB22-9-33Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 EWSB22D9A33?
EWSB22D9A33 is a BOLT,CLOSE TOLERANCE.
What parts can replace EWSB22D9A33?
There are 4 known substitutes for EWSB22D9A33: BM17020-9A33, VS3071-9F33, GB511B9-33 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for EWSB22D9A33?
EWSB22D9A33 is cataloged in the U.S. Government catalog under NSN 5306-00-385-5419. 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.