The Washer,key, cataloged under National Stock Number 5310-01-340-4635, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Corp Electronic Systems Defensive System Div. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-340-4635 |
| Primary Part Number | 833031-001 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Northrop Grumman Corp Electronic Systems Defensive System Div |
| Status | ACTIVE |
| Internal Straight Key Width | 0.105 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35,TYPE 4 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | KEY |
| Material Document and Classification | AMS 5738 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.085 INCHES MINIMUM AND 1.090 INCHES MAXIMUM IN |
| Material Thickness | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 303SE OVERALL |
| Hole Diameter | 1.002 INCHES MINIMUM AND 1.006 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 |
|---|---|
| 833031-001 PRIMARY | Northrop Grumman Corp Electronic Systems Defensive System Div (USA) |
NSN 5310-01-340-4635 is a Washer,key, manufactured by Northrop Grumman Corp Electronic Systems Defensive System Div, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-340-4635 has 1 manufacturer part number on file: 833031-001 (Northrop Grumman Corp Electronic Systems Defensive System Div).
Key specifications for 833031-001: Internal Straight Key Width: 0.105 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35,TYPE 4 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: KEY; Material Document and Classification: AMS 5738 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 9 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.