The Deflector,dirt and Liquid, cataloged under National Stock Number 2520-01-156-0552, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2520-01-156-0552 |
| Primary Part Number | 3977358 |
| Item Name | Deflector,dirt and Liquid |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 1008 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1008 ASSN STD SINGLE MATERIAL RESPONSE |
| Outside Diameter | 4.240 INCHES NOMINAL IN |
| Body Length | 0.820 INCHES NOMINAL IN |
| Inside Diameter | 2.741 INCHES MINIMUM AND 2.746 INCHES MAXIMUM IN |
| Step Diameter | 4.160 INCHES NOMINAL IN |
| Material | STEEL COMP 1008 |
| 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 |
|---|---|
| 3977358 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 3977358 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 2520-01-156-0552 is a Deflector,dirt and Liquid, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-156-0552 has 1 manufacturer part number on file: 3977358 (General Motors Llc Dba General Motors Llc).
Key specifications for 3977358: Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 1008 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1008 ASSN STD SINGLE MATERIAL RESPONSE; Outside Diameter: 4.240 INCHES NOMINAL IN; Body Length: 0.820 INCHES NOMINAL IN; Inside Diameter: 2.741 INCHES MINIMUM AND 2.746 INCHES MAXIMUM IN. 6 specifications are 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.