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990 0420 — GOVERNOR,DIESEL ENGINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

990 0420: GOVERNOR,DIESEL ENGINE.

The GOVERNOR,DIESEL ENGINE is a the manufacturer industrial component. Key specifications include end_item_identification: ENGINE FUEL SYSTEM COMPONENTS,NONAIRCRAFT. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-217-4617, 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
990 0420
NSN: 5305-01-217-4617
NIINs: 012174617, 013321968
FSC: 5305 — Screws
CAGE: 34914 — HIAB USA INC (USA)
SPECIFICATIONS
end_item_identificationENGINE FUEL SYSTEM COMPONENTS,NONAIRCRAFT
NSN5305-01-217-4617
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 990 0420 · 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: 5.0 MILLIMETERS NOMINAL MM
•
FASTENER LENGTH: 25.00 MILLIMETERS NOMINAL MM
•
THREAD PITCH IN MILLIMETERS: 1.25
•
THREAD LENGTH: 22.0 MILLIMETERS NOMINAL MM
•
HARDNESS RATING: 18.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 8.0 MILLIMETERS MM
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT5.0 MILLIMETERS NOMINAL MM
FASTENER LENGTH25.00 MILLIMETERS NOMINAL MM
THREAD PITCH IN MILLIMETERS1.25
THREAD LENGTH22.0 MILLIMETERS NOMINAL MM
HARDNESS RATING18.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER8.0 MILLIMETERS MM
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS13.0 MILLIMETERS NOMINAL MM
SURFACE TREATMENTZINC OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 990 0420?
990 0420 is a GOVERNOR,DIESEL ENGINE.
What is the NSN for 990 0420?
990 0420 is cataloged in the U.S. Government catalog under NSN 5305-01-217-4617. 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.