The Washer,shouldered, cataloged under National Stock Number 5310-00-080-0027, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Gc/waldom Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-080-0027 |
| Primary Part Number | 6527BLACK |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Gc/waldom Inc |
| Status | ACTIVE |
| Shoulder Height | 0.032 INCHES NOMINAL IN |
| Style Designator | SHOULDERED |
| Outside Diameter | 0.438 INCHES NOMINAL IN |
| Material Thickness | 0.030 INCHES NOMINAL IN |
| Shoulder Diameter | 0.255 INCHES NOMINAL IN |
| Material | CELLULOSE OVERALL |
| Hole Diameter | 0.196 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 |
|---|---|
| 6527BLACK PRIMARY | Gc/waldom Inc (USA) |
| Reference | Meaning |
|---|---|
| 950501-57 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| A363-20-57 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-00-080-0027 is a Washer,shouldered, manufactured by Gc/waldom Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-080-0027 has 1 manufacturer part number on file: 6527BLACK (Gc/waldom Inc).
Key specifications for 6527BLACK: Shoulder Height: 0.032 INCHES NOMINAL IN; Style Designator: SHOULDERED; Outside Diameter: 0.438 INCHES NOMINAL IN; Material Thickness: 0.030 INCHES NOMINAL IN. 7 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.