PartsTable
Technical Data Sheet
Download PDF

1238-73-520-6016 — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1238-73-520-6016: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 AND STEEL COMP 4340 AND STEEL COMP 8740 OVERALL, head_style: DOUBLE HEXAGON EXTENDED WASHER, head_height: 0.388 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 1.645 INCHES NOMINAL IN, fastener_length: 1.645 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-504-7861, 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
1238-73-520-6016
NSN: 5306-01-504-7861
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 AND STEEL COMP 4340 AND STEEL COMP 8740 OVERALL
head_styleDOUBLE HEXAGON EXTENDED WASHER
head_height0.388 INCHES NOMINAL IN
thread_class3A A
thread_length1.645 INCHES NOMINAL IN
fastener_length1.645 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE ZINC OVERALL
width_between_flats0.422 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
end_item_identification5420014305403
nominal_thread_diameter0.375 INCHES IN
extended_washer_diameter0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
NSN5306-01-504-7861
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1238-73-520-6016 · 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: 0.388 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.645 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: TT-C-490, TYPE I FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
•
THREAD LENGTH: 1.645 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE AND MIL-S-8503 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: DOUBLE HEXAGON EXTENDED WASHER
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.388 INCHES NOMINAL IN
FASTENER LENGTH1.645 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONTT-C-490, TYPE I FED SPEC SINGLE TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
THREAD LENGTH1.645 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE AND MIL-S-8503 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.422 INCHES MINIMUM AND 0.437 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

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
Ready to buy 1238-73-520-6016?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 1238-73-520-6016?
1238-73-520-6016 is a BOLT,SHEAR.
What is the NSN for 1238-73-520-6016?
1238-73-520-6016 is cataloged in the U.S. Government catalog under NSN 5306-01-504-7861. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 1238-73-520-6016

✓ 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.