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AN175C12 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

AN175C12: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: HEXAGON, grip_length: 0.797 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN, head_height: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.3112 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-301-3754, 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
AN175C12
NSN: 5306-01-301-3754
FSC: 5306 — Bolts
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleHEXAGON
grip_length0.797 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN
head_height0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.3112 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM IN
thread_length0.529 INCHES NOMINAL IN
fastener_length1.326 INCHES MINIMUM AND 1.356 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_between_flats0.580 INCHES NOMINAL IN
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch24
NSN5306-01-301-3754
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN175C12 · 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: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.326 INCHES MINIMUM AND 1.356 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.529 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
SPECIFICATION/STANDARD DATA: 88044-AN175 GOVERNMENT STANDARD
•
GRIP LENGTH: 0.797 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
FASTENER LENGTH1.326 INCHES MINIMUM AND 1.356 INCHES MAXIMUM IN
THREAD LENGTH0.529 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
SPECIFICATION/STANDARD DATA88044-AN175 GOVERNMENT STANDARD
GRIP LENGTH0.797 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN
WIDTH BETWEEN FLATS0.580 INCHES NOMINAL IN
GRIP DIAMETER0.3112 INCHES MINIMUM AND 0.3117 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 1
932.19.60.804Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AN175C12?
AN175C12 is a BOLT,CLOSE TOLERANCE.
What parts can replace AN175C12?
There is 1 known substitute for AN175C12: 932.19.60.804. Substitute compatibility should be verified for your specific system.
What is the NSN for AN175C12?
AN175C12 is cataloged in the U.S. Government catalog under NSN 5306-01-301-3754. 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.