The Retainer Assembly,bearing, cataloged under National Stock Number 2520-00-752-1704, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Meritor Industrial Products, Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-00-752-1704 |
| Primary Part Number | A3866Y519 |
| Item Name | Retainer Assembly,bearing |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Meritor Industrial Products, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | CAST IRON RETAINER;SYNTHETIC RUBBER ELEMENT WITH STEEL CASE OIL SEAL;1.625 IN. O/A LG,5.875 IN. O/A W.,6.500 IN. O/A H. DESIGNED TO ACCOMMODATE A 2.375 IN. DIA SHAFT;INCLUDES SIX PLAIN MTG HOLES 0.531 IN. DIA,LOCATED 60 DEGS APART ON A 5.375 IN. HOLE CIRCLE 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 |
|---|---|
| 7521704 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| A3866Y519 | Meritor Heavy Vehicle Systems, Llc (USA) |
| A3866Y519 PRIMARY | Meritor Industrial Products, Llc (USA) |
| Reference | Meaning |
|---|---|
| 801E1100 | 5/9 Secondary reference Kersey / American Lafrance a Div of Figgie International Inc |
| 2675D5 | 5/9 Secondary reference Diamond Reo Truck Co |
| 913833 | 5/9 Secondary reference Sasco Inc Canadian Div |
| 2520007521704 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 2520-00-752-1704 is a Retainer Assembly,bearing, manufactured by Meritor Industrial Products, Llc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-752-1704 has 3 manufacturer part numbers on file: 7521704 (U S Army Tank Automotive Command Amsta-Im-Mm), A3866Y519 (Meritor Heavy Vehicle Systems, Llc), A3866Y519 (Meritor Industrial Products, Llc).
Key specifications for A3866Y519: General Characteristics Item Description: CAST IRON RETAINER;SYNTHETIC RUBBER ELEMENT WITH STEEL CASE OIL SEAL;1.625 IN. O/A LG,5.875 IN. O/A W.,6.500 IN. O/A H. DESIGNED TO ACCOMMODATE A 2.375 IN. DIA SHAFT;INCLUDES SIX PLAIN MTG HOLES 0.531 IN. DIA,LOCATED 60 DEGS APART ON A 5.375 IN. HOLE CIRCLE 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.