The Washer,flat, cataloged under National Stock Number 5310-01-218-7533, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-218-7533 |
| Primary Part Number | NC223677 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Leslie Controls, Inc. Dba Leslie Controls Inc |
| Status | ACTIVE |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Material | STEEL COMP 303 OVERALL |
| 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 |
|---|---|
| NC223677 PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| 298-00-204 1/2IN PIECE 26 | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 298-00-204 REV E PC 26 | C/1 Advisory reference — outside the item-of-supply concept Circor Intl Inc |
| 298-00-204 1/2IN PIECE 26 | 5/9 Secondary reference Circor Intl Inc |
| 298-00-204 ASSY LL 1/2IN PC26 | C/1 Advisory reference — outside the item-of-supply concept Circor Intl Inc |
NSN 5310-01-218-7533 is a Washer,flat, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-218-7533 has 2 manufacturer part numbers on file: NC223677 (Leslie Controls, Inc. Dba Leslie Controls Inc), 298-00-204 1/2IN PIECE 26 (Leslie Controls, Inc. Dba Leslie Controls Inc).
Key specifications for NC223677: Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Material: STEEL COMP 303 OVERALL. 2 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.