The Plate,retaining,bearing, cataloged under National Stock Number 3110-00-972-8586, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 3110-00-972-8586 |
| Primary Part Number | 547A003018 |
| Item Name | Plate,retaining,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Bolt Circle Hole Quantity | 3 |
| Mounting Hole Type | ROUND, UNTHREADED |
| Counterbore Diameter | 0.5100 INCHES MINIMUM AND 0.5200 INCHES MAXIMUM IN |
| Counterbore Depth | 0.0620 INCHES NOMINAL IN |
| Overall Thickness | 0.093 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.1285 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | FLAT W/APERTURE |
| Aperture Diameter | 0.4220 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 416 OVERALL |
| 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 |
|---|---|
| A547-577 | L3 Technologies, Inc. Div L3 Keo (USA) |
| 547A003018 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 547A003018 | C/1 Advisory reference — outside the item-of-supply concept L3 Technologies, Inc. Div L3 Keo |
| 003018 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
NSN 3110-00-972-8586 is a Plate,retaining,bearing, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-972-8586 has 2 manufacturer part numbers on file: A547-577 (L3 Technologies, Inc. Div L3 Keo), 547A003018 (Northrop Grumman Systems Corporation).
Key specifications for 547A003018: Bolt Circle Hole Quantity: 3; Mounting Hole Type: ROUND, UNTHREADED; Counterbore Diameter: 0.5100 INCHES MINIMUM AND 0.5200 INCHES MAXIMUM IN; Counterbore Depth: 0.0620 INCHES NOMINAL IN. 10 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.