The Washer,key, cataloged under National Stock Number 5310-00-820-6903, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives 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 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-820-6903 |
| Primary Part Number | 117P10108-11 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Internal Straight Key Width | 0.109 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 0.883 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | QQ-A-255,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.625 INCHES NOMINAL IN |
| Material Thickness | 0.090 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 2014 OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 1.890 INCHES NOMINAL 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 |
|---|---|
| 12P10085-1 | Northrop Grumman Systems Corporation (USA) |
| 117P10108-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 121P10085-11 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 121P10085-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
NSN 5310-00-820-6903 is a Washer,key, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-820-6903 has 3 manufacturer part numbers on file: 12P10085-1 (Northrop Grumman Systems Corporation), 117P10108-11 (Northrop Grumman Systems Corporation), 121P10085-11 (Northrop Grumman Systems Corporation).
Key specifications for 117P10108-11: Internal Straight Key Width: 0.109 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 0.883 INCHES NOMINAL IN; Style Designator: KEY; Material Document and Classification: QQ-A-255,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.