The Guard Assembly,gear, cataloged under National Stock Number 2520-00-237-3941, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2520-00-237-3941 |
| Primary Part Number | 9S0552 |
| Item Name | Guard Assembly,gear |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL;0.500 IN. OD; WELDED;THREE PLAIN BOLT HOLES;0.390 IN. DIA 8.500 IN. O/A LG;7.000 IN. O/A W;9.00 IN. O/A H IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 9S0552 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 9S552 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
NSN 2520-00-237-3941 is a Guard Assembly,gear, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-237-3941 has 1 manufacturer part number on file: 9S0552 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 9S0552: General Characteristics Item Description: STEEL;0.500 IN. OD; WELDED;THREE PLAIN BOLT HOLES;0.390 IN. DIA 8.500 IN. O/A LG;7.000 IN. O/A W;9.00 IN. O/A H IN. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.