The Housing Assembly,esu, cataloged under National Stock Number 2040-01-509-1370, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2040-01-509-1370 |
| Primary Part Number | 243-6985886-3L1 |
| Item Name | Housing Assembly,esu |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 243-6985886-3L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| H719-0403-3L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 243-6985892-A1L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| H719-1005-A1L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| H719-0403-3 | 5/1 Secondary reference U.S. Government activity |
| 243-6985886-3 | 5/1 Secondary reference Naval Sea Systems Command |
| 243-6985892-A1 | 3/1 Design control — primary reference Naval Sea Systems Command |
| H719-1005-A1 | 5/1 Secondary reference U.S. Government activity |
NSN 2040-01-509-1370 is a Housing Assembly,esu, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-509-1370 has 4 manufacturer part numbers on file: 243-6985886-3L1 (Naval Inventory Control Point Mechanicsburg), H719-0403-3L1 (Naval Inventory Control Point Mechanicsburg), 243-6985892-A1L1 (Naval Inventory Control Point Mechanicsburg), H719-1005-A1L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 243-6985886-3L1: Criticality Code Justification: ZZZY; Part Name Assigned by Controlling Agency: HOUSING AND ESU ASSY MN SHAFT SEAL; UNIT EMER SEALING; Reference Number Differentiating Characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS. 2 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.
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.