The Washer,aircraft,mat, cataloged under National Stock Number 5310-01-563-0786, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Washer,aircraft,mat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (CAGE 78286); Northrop Grumman Systems Corporation (CAGE 0W6H8) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-563-0786 |
| Primary Part Number | NL3/8-SP-SS |
| Item Name | Washer,aircraft,mat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| NL3/8-SP-SS PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| NL3/8-SP-SS PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| NL3/8-SP-SS | 5/9 Secondary reference Nord Lock Inc |
| NL3/8-SP-SS | 5/9 Secondary reference Schweizer Aircraft Corp. |
| NL3/8-SP-SS | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5310-01-563-0786 is a Washer,aircraft,mat, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-563-0786 has 2 manufacturer part numbers on file: NL3/8-SP-SS (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), NL3/8-SP-SS (Northrop Grumman Systems 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.