The Washer,recessed, cataloged under National Stock Number 5310-01-061-3328, 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 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-061-3328 |
| Primary Part Number | 160D213014-263 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | QQ-A-250/13 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.620 INCHES NOMINAL IN |
| Material Thickness | 0.125 INCHES NOMINAL IN |
| Recess Diameter | 0.390 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Hole Diameter | 0.203 INCHES NOMINAL IN |
| Recess Angle | 100.0 DEGREES NOMINAL |
| 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 |
|---|---|
| 160D213014-263 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 160D213014-263 | Amacon Corporation (USA) |
| Reference | Meaning |
|---|---|
| 160D213014-263 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 160D213014-263 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation |
NSN 5310-01-061-3328 is a Washer,recessed, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-061-3328 has 2 manufacturer part numbers on file: 160D213014-263 (Northrop Grumman Systems Corporation), 160D213014-263 (Amacon Corporation).
Key specifications for 160D213014-263: Style Designator: RECESSED; Material Document and Classification: QQ-A-250/13 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.620 INCHES NOMINAL IN; Material Thickness: 0.125 INCHES NOMINAL IN. 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.