The Thrust Stop Ring, cataloged under National Stock Number 5365-01-487-0784, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5365-01-487-0784 |
| Primary Part Number | 1978919 |
| Item Name | Thrust Stop Ring |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Overall Diameter | 8.320 INCHES NOMINAL IN |
| Material | NICKEL ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1978919 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1978837-6 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 1978837 ITEM 6 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5365-01-487-0784 is a Thrust Stop Ring, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-487-0784 has 1 manufacturer part number on file: 1978919 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 2030-01-581-9819. Verify interchangeability with system specifications before substitution.
Key specifications for 1978919: Overall Diameter: 8.320 INCHES NOMINAL IN; Special Features: INSIDE DIAMETER 7.150 INCHES IN; Part Name Assigned by Controlling Agency: RING, THRUST STOP; End Item Identification: WASP CLASS LHD; E/I RADAR MAST. 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.