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AN176-23A — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

AN176-23A: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, grip_length: 1.812 INCHES NOMINAL IN, fastener_length: 2.45 INCHES NOMINAL IN, special_features: UNDRILLED 23A, DRILLED 23 A, part_name_assigned_by_controlling_agency: CLOSE TOLERANCE BOLT. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-677-3916, 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
AN176-23A
NSN: 5306-01-677-3916
FSC: 5306 — Bolts
CAGE: 0WTF7 — ECAS, LLC DBA MONROE AEROSPACE (USA)
SPECIFICATIONS
head_styleHEXAGON
grip_length1.812 INCHES NOMINAL IN
fastener_length2.45 INCHES NOMINAL IN
special_featuresUNDRILLED 23A, DRILLED 23 A
part_name_assigned_by_controlling_agencyCLOSE TOLERANCE BOLT
NSN5306-01-677-3916
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN176-23A · 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
•
FASTENER LENGTH: 2.45 INCHES NOMINAL IN
•
HEAD STYLE: HEXAGON
•
GRIP LENGTH: 1.812 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FASTENER LENGTH2.45 INCHES NOMINAL IN
HEAD STYLEHEXAGON
GRIP LENGTH1.812 INCHES NOMINAL IN
SPECIAL FEATURESUNDRILLED 23A, DRILLED 23 A
PART NAME ASSIGNED BY CONTROLLING AGENCYCLOSE TOLERANCE BOLT
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AN176-23A?
AN176-23A is a BOLT,CLOSE TOLERANCE.
What is the NSN for AN176-23A?
AN176-23A is cataloged in the U.S. Government catalog under NSN 5306-01-677-3916. 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.