The Retainer Asy Oil Se, cataloged under National Stock Number 2520-00-752-0747, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Heil Environmental Industries. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Retainer Asy Oil Se |
| FSC / FSG | 2520 — Vehicular Power Transmission Components (FSG 25) |
| Manufacturers | U S Army Tank Automotive Command Amsta-Im-Mm (CAGE 19207); General Motors Corp (CAGE 24617); Heil Environmental Industries (CAGE 27996) |
| Parameter | Value |
|---|---|
| NSN | 2520-00-752-0747 |
| Primary Part Number | A12B1059 |
| Item Name | Retainer Asy Oil Se |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Heil Environmental Industries |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 7520747 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 2200645 | General Motors Corp (USA) |
| A12B1059 PRIMARY | Heil Environmental Industries (USA) |
| Reference | Meaning |
|---|---|
| 2200645 | 5/9 Secondary reference Spalla Inc |
| 2200645 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 2200645 | 5/9 Secondary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
NSN 2520-00-752-0747 is a Retainer Asy Oil Se, manufactured by Heil Environmental Industries, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-752-0747 has 3 manufacturer part numbers on file: 7520747 (U S Army Tank Automotive Command Amsta-Im-Mm), 2200645 (General Motors Corp), A12B1059 (Heil Environmental Industries).
1 possible match (shared part number, not a government interchangeability claim): 5935-00-865-6924. Verify interchangeability with system specifications before substitution.
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.