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Technical Data Sheet
PartsTable / COMPONENT / 7725844
7725844 ✓ 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,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8640 OR STEEL COMP 8740 OVERALL, head_style: HEXAGON, head_height: 0.375 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.625 INCHES MINIMUM IN, thread_series: UNF COUNTERBORE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-693-0635, 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
7725844
NSN: 5306-00-693-0635
FSC: 5306
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 8640 OR STEEL COMP 8740 OVERALL
head_styleHEXAGON
head_height0.375 INCHES NOMINAL IN
thread_class2A A
thread_length0.625 INCHES MINIMUM IN
thread_seriesUNF COUNTERBORE
fastener_length3.750 INCHES NOMINAL IN
hardness_rating37.0 ROCKWELL C MINIMUM OVERALL
thread_directionRIGHT-HAND
threads_per_inch28 COUNTERBORE
counterbore_depth0.375 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
NSN5306-00-693-0635
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 7725844 · 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
•
INTERNAL THREAD CLASS: 2B CONCENTRIC HOLE
•
THREADS PER INCH: 28 COUNTERBORE
•
NOMINAL THREAD SIZE: 0.250 INCHES COUNTERBORE IN
•
HEAD STYLE: HEXAGON
•
THREAD SERIES: UNF COUNTERBORE
•
INTERNAL THREAD DIRECTION: RIGHT-HAND COUNTERBORE
•
HEAD HEIGHT: 0.375 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 14
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL THREAD CLASS2B CONCENTRIC HOLE
THREADS PER INCH28 COUNTERBORE
NOMINAL THREAD SIZE0.250 INCHES COUNTERBORE IN
HEAD STYLEHEXAGON
THREAD SERIESUNF COUNTERBORE
INTERNAL THREAD DIRECTIONRIGHT-HAND COUNTERBORE
HEAD HEIGHT0.375 INCHES NOMINAL IN
THREAD QUANTITY PER INCH14
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
4MB635Interchangeable
interchangeable cross-reference
interchangeable
XA-766-1ZInterchangeable
interchangeable cross-reference
interchangeable
3HS199Interchangeable
interchangeable cross-reference
interchangeable
766Interchangeable
interchangeable cross-reference
interchangeable
3P202Interchangeable
interchangeable cross-reference
interchangeable
7042BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7725844?
7725844 is a BOLT,INTERNALLY RELIEVED BODY.
What parts can replace 7725844?
There are 21 known substitutes for 7725844: 4MB635, XA-766-1Z, 3HS199 and 18 more. Substitute compatibility should be verified for your specific system.
Is 7725844 still available?
7725844 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026