The Washer,flat, cataloged under National Stock Number 5310-00-006-9384, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Jewell Instruments Llc. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-006-9384 |
| Primary Part Number | 20821511-012 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Jewell Instruments Llc |
| Status | ACTIVE |
| Overall Diameter | 0.208 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | NICKEL OVERALL |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.088 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN |
| Thickness | 0.016 INCHES MINIMUM AND 0.020 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 |
|---|---|
| 20821511-012 PRIMARY | Jewell Instruments Llc (USA) |
| Reference | Meaning |
|---|---|
| 821511-012 | 5/9 Secondary reference Jewell Instruments Llc |
NSN 5310-00-006-9384 is a Washer,flat, manufactured by Jewell Instruments Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-006-9384 has 1 manufacturer part number on file: 20821511-012 (Jewell Instruments Llc).
Key specifications for 20821511-012: Overall Diameter: 0.208 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: NICKEL OVERALL; Peripheral Shape Style: ROUND. 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.