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9109M81P02 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

9109M81P02: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, head_style: UNDERCUT HEXAGON, grip_length: 0.550 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN, head_height: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-208-2891, 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
9109M81P02
NSN: 5306-01-208-2891
FSC: 5306 — Bolts
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
head_styleUNDERCUT HEXAGON
grip_length0.550 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN
head_height0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
thread_length0.350 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES GRIP
fastener_length0.960 INCHES MINIMUM AND 0.980 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_between_flats0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
nominal_thread_diameter0.190 INCHES IN
NSN5306-01-208-2891
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 9109M81P02 · 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
•
SURFACE FINISH: 32.0 MICROINCHES THREADS
•
HEAD HEIGHT: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.960 INCHES MINIMUM AND 0.980 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.350 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM FIRST HOLE IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH32.0 MICROINCHES GRIP
HEAD HEIGHT0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
FASTENER LENGTH0.960 INCHES MINIMUM AND 0.980 INCHES MAXIMUM IN
THREAD LENGTH0.350 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
SHANK UNTHREADED HOLE DIAMETER0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEUNDERCUT HEXAGON
THREAD DIRECTIONRIGHT-HAND
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 9109M81P02?
9109M81P02 is a BOLT,CLOSE TOLERANCE.
What is the NSN for 9109M81P02?
9109M81P02 is cataloged in the U.S. Government catalog under NSN 5306-01-208-2891. 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.