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PartsTable / COMPONENT / 9139004
9139004 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include head_style: SPADE, head_height: 0.047 INCHES NOMINAL IN, head_length: 0.375 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.438 INCHES MINIMUM IN, fastener_length: 0.844 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-817-1285, 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
9139004
NSN: 5306-00-817-1285
FSC: 5306
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 4037 OR STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 8740 OR STEEL COMP 4140 OVERALL
head_styleSPADE
head_height0.047 INCHES NOMINAL IN
head_length0.375 INCHES NOMINAL IN
thread_class2A A
thread_length0.438 INCHES MINIMUM IN
fastener_length0.844 INCHES NOMINAL IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
surface_treatmentCHROMATE OVERALL
width_between_flats0.250 INCHES NOMINAL IN
NSN5306-00-817-1285
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 9139004 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD LENGTH: 0.375 INCHES NOMINAL IN
•
FEATURES PROVIDED: FINISHED HEAD
•
WIDTH BETWEEN FLATS: 0.250 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD STYLE: SPADE
•
THREAD CLASS: 2A A
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
HEAD LENGTH0.375 INCHES NOMINAL IN
FEATURES PROVIDEDFINISHED HEAD
WIDTH BETWEEN FLATS0.250 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLESPADE
THREAD CLASS2A A
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENTCHROMATE OVERALL
HEAD HEIGHT0.047 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
2611Upgraded Successor
successor cross-reference
successor
25036Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9139004?
9139004 is a BOLT,MACHINE.
What parts can replace 9139004?
There are 2 known substitutes for 9139004: 2611, 25036. Substitute compatibility should be verified for your specific system.
What is the NSN for 9139004?
9139004 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-817-1285. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026