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Technical Data Sheet
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3166821-1 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3166821-1: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OVERALL, head_style: DISHED HEXAGON, head_height: 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN, fastener_length: 0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-036-7884, 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
3166821-1
NSN: 5306-01-036-7884
FSC: 5306 — Bolts
CAGE: 59364 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - TEMPE (WEST WARNER ROAD) (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OVERALL
head_styleDISHED HEXAGON
head_height0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
thread_class3A A
thread_length0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
fastener_length0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
hardness_rating35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedUNFINISHED HEAD
width_between_flats0.625 INCHES NOMINAL IN
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch32
NSN5306-01-036-7884
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3166821-1 · 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: 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
•
HARDNESS RATING: 35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
FEATURES PROVIDED: UNFINISHED HEAD
•
HEAD STYLE: DISHED HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
FASTENER LENGTH0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
THREAD LENGTH0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
HARDNESS RATING35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
FEATURES PROVIDEDUNFINISHED HEAD
HEAD STYLEDISHED HEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.625 INCHES NOMINAL 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3166821-1?
3166821-1 is a BOLT,MACHINE.
What is the NSN for 3166821-1?
3166821-1 is cataloged in the U.S. Government catalog under NSN 5306-01-036-7884. This indicates validated use in U.S. government and defense supply chains.
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