The Gear Sector,spur, cataloged under National Stock Number 3020-01-443-8232, 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 Bethlehem Corporation. Government technical data includes 4 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-443-8232 |
| Primary Part Number | 123-4403544 PART 81 |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Bethlehem Corporation |
| Status | ACTIVE |
| Bore Style | PLAIN BOTH ENDS |
| Style Designator | HUBLESS |
| Material Document and Classification | QQ-N-288, COMP B FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | NICKEL ALLOY OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 123-4403544 PART 81 PRIMARY | Bethlehem Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1502-216 PART 81 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 123-5941945 PART 81 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 1502-215 PART 81 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 5941945 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 3020-01-443-8232 is a Gear Sector,spur, manufactured by Bethlehem Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-443-8232 has 1 manufacturer part number on file: 123-4403544 PART 81 (Bethlehem Corporation).
4 possible matches (shared part number, not a government interchangeability claim): 3020-01-443-8236, 3040-01-443-8745, 3020-01-466-5234. Verify interchangeability with system specifications before substitution.
Key specifications for 123-4403544 PART 81: Bore Style: PLAIN BOTH ENDS; Style Designator: HUBLESS; Material Document and Classification: QQ-N-288, COMP B FED SPEC SINGLE MATERIAL RESPONSE OVERALL; End Item Identification: HATCH COVER-30 DIA; W/S LOS ANGELES CLASS SSN (688). 4 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.
NSN 3020-01-443-8232 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.