The Washer,flat, cataloged under National Stock Number 5310-01-249-4205, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-249-4205 |
| Primary Part Number | 4M116-03016 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Overall Diameter | 0.490 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-P-19468,GROUP A MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-P-22241,TY1,GRB MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.186 INCHES MINIMUM AND 0.206 INCHES MAXIMUM IN |
| Thickness | 0.014 INCHES MINIMUM AND 0.020 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 |
|---|---|
| 4M116-03016 | Aero-Plastics, Inc. (USA) |
| 4M116-03016 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 4M116-03016 | 5/9 Secondary reference Jetron Inc |
| 4M116-03016 | 5/9 Secondary reference Young J H Co |
NSN 5310-01-249-4205 is a Washer,flat, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-249-4205 has 2 manufacturer part numbers on file: 4M116-03016 (Aero-Plastics, Inc.), 4M116-03016 (The Boeing Company Div Defense).
Key specifications for 4M116-03016: Overall Diameter: 0.490 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN; Material Document and Classification: MIL-P-19468,GROUP A MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-P-22241,TY1,GRB MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 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.