8404000 — GEAR,WORM

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

8404000: GEAR,WORM.

The GEAR,WORM is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, helix_angle: 30.0000 DEGREES, pitch_diameter: 1.6539 INCHES NOMINAL IN, pressure_angle: 25.0000 DEGREES, hardness_rating: 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL, style_designator: PROTRUDING HUBS. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-385-7975, 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

8404000

NSN: 3020-00-385-7975
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)

SPECIFICATIONS

material	STEEL OVERALL
helix_angle	30.0000 DEGREES
pitch_diameter	1.6539 INCHES NOMINAL IN
pressure_angle	25.0000 DEGREES
hardness_rating	35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
style_designator	PROTRUDING HUBS
surface_treatment	PHOSPHATE ZINC OVERALL
end_nominal_length	0.750 INCHES SECOND END IN
face_nominal_width	2.625 INCHES IN
end_nominal_diameter	1.377 INCHES SECOND END IN
hub_style_designator	1 STEP FIRST END
thread_form_quantity	6
NSN	3020-00-385-7975

COMPONENT DIAGRAM

KEY FEATURES

•

THREAD FORM DIRECTION: LEFT-HAND

•

HELIX ANGLE: 30.0000 DEGREES

•

SECOND STEP NOMINAL DIAMETER: 1.389 INCHES SECOND END IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-P-16232,TYPE Z,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE AND MIL-P-16232,TYPE Z,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: 1.937 INCHES SECOND END IN

•

FIRST STEP NOMINAL LENGTH: 0.500 INCHES SECOND END IN

•

HARDNESS RATING: 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL

TECHNICAL CHARACTERISTICS

THREAD FORM DIRECTION	LEFT-HAND
HELIX ANGLE	30.0000 DEGREES
SECOND STEP NOMINAL DIAMETER	1.389 INCHES SECOND END IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-P-16232,TYPE Z,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE AND MIL-P-16232,TYPE Z,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END	1.937 INCHES SECOND END IN
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END	5.156 INCHES FIRST END IN
FIRST STEP NOMINAL LENGTH	0.500 INCHES SECOND END IN
HARDNESS RATING	35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL OVERALL LENGTH	9.719 INCHES IN
SECOND STEP NOMINAL LENGTH	0.687 INCHES SECOND END IN

OTHER ITEMS IN FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

3020-00-000-0091 3020-00-001-0027 3020-00-001-0028 3020-00-001-0063 3020-00-001-0064 3020-00-001-0066 3020-00-001-0071 3020-00-001-0072

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 8404000?

8404000 is a GEAR,WORM.

What is the NSN for 8404000?

8404000 is cataloged in the U.S. Government catalog under NSN 3020-00-385-7975. This indicates validated use in U.S. government and defense supply chains.

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8404000 — GEAR,WORM

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