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Technical Data Sheet
PartsTable / COMPONENT / AN182H26
AN182H26 ✓ 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,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include hole_type: DRILLED, head_style: HEXAGON, grip_length: 1.796 INCHES MINIMUM AND 1.828 INCHES MAXIMUM IN, head_height: 0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.7481 INCHES MINIMUM AND 0.7488 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-630-2118, 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
AN182H26
NSN: 5306-00-630-2118
FSC: 5306
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4140 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL
hole_typeDRILLED
head_styleHEXAGON
grip_length1.796 INCHES MINIMUM AND 1.828 INCHES MAXIMUM IN
head_height0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.7481 INCHES MINIMUM AND 0.7488 INCHES MAXIMUM IN
hole_diameter0.070 INCHES NOMINAL IN
hole_quantity1
thread_length1.062 INCHES MINIMUM AND 1.141 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES GRIP
fastener_length2.890 INCHES MINIMUM AND 2.937 INCHES MAXIMUM IN
NSN5306-00-630-2118
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN182H26 · 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
•
WIDTH BETWEEN FLATS: 1.053 INCHES MINIMUM AND 1.066 INCHES MAXIMUM IN
•
SURFACE FINISH: 63.0 MICROINCHES BEARING SURFACE OF HEAD
•
SHANK UNTHREADED HOLE DIAMETER: 0.141 INCHES NOMINAL FIRST HOLE IN
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
•
HOLE TYPE: DRILLED
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE OR AMS 6300 ASSN STD 6TH MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
HOLE DIAMETER: 0.070 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH BETWEEN FLATS1.053 INCHES MINIMUM AND 1.066 INCHES MAXIMUM IN
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES NOMINAL FIRST HOLE IN
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HOLE TYPEDRILLED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE OR AMS 6300 ASSN STD 6TH MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
HOLE DIAMETER0.070 INCHES NOMINAL IN
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH LBS
THREAD SERIES DESIGNATORUNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
NASM6812Upgraded Successor
successor cross-reference
successor
AN7-77AUpgraded Successor
successor cross-reference
successor
MS20074-05-24Upgraded Successor
successor cross-reference
successor
AN75A25Upgraded Successor
successor cross-reference
successor
B6812Upgraded Successor
successor cross-reference
successor
MS20074-05-25Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN182H26?
AN182H26 is a BOLT,CLOSE TOLERANCE.
What parts can replace AN182H26?
There are 19 known substitutes for AN182H26: NASM6812, AN7-77A, MS20074-05-24 and 16 more. Substitute compatibility should be verified for your specific system.
Is AN182H26 still available?
AN182H26 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