The Detector,metallic Particle, cataloged under National Stock Number 2990-01-681-9676, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Rolls-Royce Corporation. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Detector,metallic Particle |
| FSC / FSG | 2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29) |
| Manufacturers | Rolls-Royce Corporation (CAGE 63005) |
| Parameter | Value |
|---|---|
| NSN | 2990-01-681-9676 |
| Primary Part Number | 87-4999 |
| Item Name | Detector,metallic Particle |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| 87-4999 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| NMP401005 FN 27 | D/9 Drawing number reference only Rolls-Royce Marine North America Inc. |
| 87-4999 | 3/9 Design control — primary reference Rolls-Royce Marine North America Inc. |
NSN 2990-01-681-9676 is a Detector,metallic Particle, manufactured by Rolls-Royce Corporation, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-681-9676 has 1 manufacturer part number on file: 87-4999 (Rolls-Royce Corporation).
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.