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Technical Data Sheet
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031-0220 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

031-0220: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, fastener_length: 1.0 INCHES NOMINAL IN, special_features: USED ON AFTER COOLER,SIZE:3/8"-16X1", end_item_identification: 3608 GENERATOR SET,DIESEL, part_name_assigned_by_controlling_agency: BOLT,MACHINE. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-679-5568, 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
031-0220
NSN: 5306-01-679-5568
FSC: 5306 — Bolts
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
head_styleHEXAGON
fastener_length1.0 INCHES NOMINAL IN
special_featuresUSED ON AFTER COOLER,SIZE:3/8"-16X1"
end_item_identification3608 GENERATOR SET,DIESEL
part_name_assigned_by_controlling_agencyBOLT,MACHINE
NSN5306-01-679-5568
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 031-0220 · 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: 1.0 INCHES NOMINAL IN
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.0 INCHES NOMINAL IN
HEAD STYLEHEXAGON
SPECIAL FEATURESUSED ON AFTER COOLER,SIZE:3/8"-16X1"
PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT,MACHINE
END ITEM IDENTIFICATION3608 GENERATOR SET,DIESEL
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 031-0220?
031-0220 is a BOLT,MACHINE.
What is the NSN for 031-0220?
031-0220 is cataloged in the U.S. Government catalog under NSN 5306-01-679-5568. 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.