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8936438-01 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

8936438-01: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OVERALL, head_style: HEXAGON, grip_length: 1.546 INCHES MINIMUM AND 1.578 INCHES MAXIMUM IN, head_height: 0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.4986 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-314-7759, 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
8936438-01
NSN: 5306-01-314-7759
FSC: 5306 — Bolts
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OVERALL
head_styleHEXAGON
grip_length1.546 INCHES MINIMUM AND 1.578 INCHES MAXIMUM IN
head_height0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.4986 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM IN
thread_length0.782 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES GRIP
fastener_length2.334 INCHES MINIMUM AND 2.375 INCHES MAXIMUM IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
NSN5306-01-314-7759
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8936438-01 · 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
•
SURFACE FINISH: 63.0 MICROINCHES GRIP
•
HEAD HEIGHT: 0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.334 INCHES MINIMUM AND 2.375 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
•
THREAD LENGTH: 0.782 INCHES NOMINAL IN
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
•
CRITICALITY CODE JUSTIFICATION: THSD
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES GRIP
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
HEAD HEIGHT0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
FASTENER LENGTH2.334 INCHES MINIMUM AND 2.375 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
THREAD LENGTH0.782 INCHES NOMINAL IN
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
CRITICALITY CODE JUSTIFICATIONTHSD
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 1
02556Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8936438-01?
8936438-01 is a BOLT,CLOSE TOLERANCE.
What parts can replace 8936438-01?
There is 1 known substitute for 8936438-01: 02556. Substitute compatibility should be verified for your specific system.
What is the NSN for 8936438-01?
8936438-01 is cataloged in the U.S. Government catalog under NSN 5306-01-314-7759. 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.