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86-53-211 — BOLT,INTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

86-53-211: BOLT,INTERNALLY RELIEVED BODY.

The BOLT,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, hole_type: DRILLED, head_style: FLAT CHAMFER, head_height: 0.399 INCHES NOMINAL IN, head_diameter: 0.830 INCHES NOMINAL IN, hole_diameter: 0.128 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-069-8701, 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
86-53-211
NSN: 5306-00-069-8701
FSC: 5306 — Bolts
CAGE: 34519 — HARMONIC DRIVE L.L.C. (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
hole_typeDRILLED
head_styleFLAT CHAMFER
head_height0.399 INCHES NOMINAL IN
head_diameter0.830 INCHES NOMINAL IN
hole_diameter0.128 INCHES NOMINAL IN
hole_quantity1
thread_length0.470 INCHES NOMINAL IN
fastener_length0.551 INCHES NOMINAL IN
style_designatorCOUNTERBORE UNTHREADED
thread_directionRIGHT-HAND
counterbore_depth0.160 INCHES NOMINAL IN
NSN5306-00-069-8701
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 86-53-211 · 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: 0.399 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.551 INCHES NOMINAL IN
•
THREAD PITCH IN MILLIMETERS: 1.0
•
THREAD LENGTH: 0.470 INCHES NOMINAL IN
•
HOLE CONFIGURATION STYLE: ROUND PERPENDICULAR
•
STYLE DESIGNATOR: COUNTERBORE UNTHREADED
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 10.0 MILLIMETERS MM
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.399 INCHES NOMINAL IN
FASTENER LENGTH0.551 INCHES NOMINAL IN
THREAD PITCH IN MILLIMETERS1.0
THREAD LENGTH0.470 INCHES NOMINAL IN
HOLE CONFIGURATION STYLEROUND PERPENDICULAR
STYLE DESIGNATORCOUNTERBORE UNTHREADED
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER10.0 MILLIMETERS MM
COUNTERBORE DEPTH0.160 INCHES NOMINAL IN
HEAD STYLEFLAT CHAMFER
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 86-53-211?
86-53-211 is a BOLT,INTERNALLY RELIEVED BODY.
What is the NSN for 86-53-211?
86-53-211 is cataloged in the U.S. Government catalog under NSN 5306-00-069-8701. 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.