The Washer,key, cataloged under National Stock Number 5310-00-286-8356, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is A and M Aerospace, Inc.. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-286-8356 |
| Primary Part Number | 337260 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | A and M Aerospace, Inc. |
| Status | ACTIVE |
| Internal Straight Key Width | 0.180 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN |
| Distance From Centerline to Inside of Prebent Key | 2.936 INCHES MINIMUM AND 2.956 INCHES MAXIMUM IN |
| External Prebent Key Length | 0.190 INCHES NOMINAL IN |
| Overall Distance Including Keys | 6.410 INCHES MINIMUM AND 6.470 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5040 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 6.010 INCHES MINIMUM AND 6.030 INCHES MAXIMUM IN |
| Material Thickness | 0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| External Straight Key Width | 0.290 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| External Key Quantity | 5 |
| Material | STEEL COMP 1010 OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 5.750 INCHES MINIMUM AND 5.770 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 |
|---|---|
| 337260 | A and M Aerospace, Inc. (USA) |
| 337260 | Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co (USA) |
| 337260 | Federal Industries, Inc. Dba Federal Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 337260 | 5/9 Secondary reference Beta Corp |
| 337260 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-286-8356 is a Washer,key, manufactured by A and M Aerospace, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-286-8356 has 3 manufacturer part numbers on file: 337260 (A and M Aerospace, Inc.), 337260 (Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co), 337260 (Federal Industries, Inc. Dba Federal Industries Inc).
Key specifications for 337260: Internal Straight Key Width: 0.180 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN; Distance From Centerline to Inside of Prebent Key: 2.936 INCHES MINIMUM AND 2.956 INCHES MAXIMUM IN; External Prebent Key Length: 0.190 INCHES NOMINAL IN; Overall Distance Including Keys: 6.410 INCHES MINIMUM AND 6.470 INCHES MAXIMUM IN. 12 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.