The Gear,internal, cataloged under National Stock Number 3020-00-074-9377, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-074-9377 |
| Primary Part Number | 11687118 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Backlash Designation | GRADE B |
| Teeth Quantity | 375 |
| Surface Treatment Document and Classification | MIL-P-16232 TYPE M CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Flange Nominal Thickness | 0.548 INCHES IN |
| Flange Nominal Diameter | 25.444 INCHES IN |
| Mounting Hole Type and Quantity | 24 COUNTERSUNK AND 2 THREADED AXIALLY THROUGH BODY FIRST END |
| Precision Classification | QUALITY NUMBER 11 |
| Mounting Hole Nominal Diameter | 0.253 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Teeth Type | SPUR |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 0.625 INCHES IN |
| Style Designator | FLANGED RING |
| Material Document and Classification | FED STD 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Pitch Diameter | 23.4375 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Mounting Hole Nominal Thread Size | 0.190 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Nominal Outside Diameter | 23.728 INCHES IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4140 OR STEEL COMP 8740 OVERALL |
| Bolt Hole Circle Nominal Diameter | 24.375 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Mounting Hole Thread Series Designator | UNF AXIALLY THROUGH BODY FIRST END |
| Attachment Method | MOUNTING HOLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 11687118 | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
| Reference | Meaning |
|---|---|
| 717116-301 | 3/9 Design control — primary reference Drs Sustainment Systems, Inc. |
NSN 3020-00-074-9377 is a Gear,internal, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-074-9377 has 1 manufacturer part number on file: 11687118 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 11687118: Backlash Designation: GRADE B; Teeth Quantity: 375; Surface Treatment Document and Classification: MIL-P-16232 TYPE M CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Body Style: PLAIN, WITH LIGHTENING HOLES. 24 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.