PartsTable
Technical Data Sheet
PartsTable / COMPONENT / AN176H25
AN176H25 ✓ 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 hole_type: DRILLED, head_style: HEXAGON, grip_length: 2.062 INCHES NOMINAL IN, head_height: 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN, thread_class: 3A A, hole_diameter: 0.070 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-206-9577, 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
AN176H25
NSN: 5306-00-206-9577
FSC: 5306
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (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
hole_typeDRILLED
head_styleHEXAGON
grip_length2.062 INCHES NOMINAL IN
head_height0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
thread_class3A A
hole_diameter0.070 INCHES NOMINAL IN
hole_quantity1
thread_length0.641 INCHES MINIMUM IN
fastener_length2.703 INCHES NOMINAL IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
NSN5306-00-206-9577
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN176H25 · 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
•
FEATURES PROVIDED: FINISHED HEAD
•
THREAD SERIES DESIGNATOR: UNF
•
THREAD CLASS: 3A A
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.106 INCHES NOMINAL FIRST HOLE IN
TECHNICAL CHARACTERISTICS (FLIS)
FEATURES PROVIDEDFINISHED HEAD
THREAD SERIES DESIGNATORUNF
THREAD CLASS3A A
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES NOMINAL FIRST HOLE IN
GRIP LENGTH2.062 INCHES NOMINAL IN
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
AN75A25Upgraded Successor
successor cross-reference
successor
B6812Upgraded Successor
successor cross-reference
successor
MS20074-05-25Upgraded Successor
successor cross-reference
successor
AN75A34Upgraded Successor
successor cross-reference
successor
MS20074-05-34Upgraded Successor
successor cross-reference
successor
AN75A40Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy AN176H25?
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 AN176H25?
AN176H25 is a BOLT,MACHINE.
What parts can replace AN176H25?
There are 19 known substitutes for AN176H25: AN75A25, B6812, MS20074-05-25 and 16 more. Substitute compatibility should be verified for your specific system.
Is AN176H25 still available?
AN176H25 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — AN176H25

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026