The Washer,recessed, cataloged under National Stock Number 5310-00-487-8145, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is C. E. Conover & Co., Inc.. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-487-8145 |
| Primary Part Number | CEC4483 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | C. E. Conover & Co., Inc. |
| Status | ACTIVE |
| Top Recess Angle | 90.0 DEGREES NOMINAL |
| Style Designator | RECESSED BOTH SIDES |
| Outside Diameter | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN |
| Recess Depth | 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Material Thickness | 0.220 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN |
| Bottom Recess Angle | 90.0 DEGREES NOMINAL |
| Recess Diameter | 0.890 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN |
| Hole Diameter | 0.770 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN |
| 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 |
|---|---|
| CEC4483 PRIMARY | C. E. Conover & Co., Inc. (USA) |
| 114PS219-2 | The Boeing Company (USA) |
NSN 5310-00-487-8145 is a Washer,recessed, manufactured by C. E. Conover & Co., Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-487-8145 has 2 manufacturer part numbers on file: CEC4483 (C. E. Conover & Co., Inc.), 114PS219-2 (The Boeing Company).
Key specifications for CEC4483: Top Recess Angle: 90.0 DEGREES NOMINAL; Style Designator: RECESSED BOTH SIDES; Outside Diameter: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN; Recess Depth: 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN. 8 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.