The Washer,flat, cataloged under National Stock Number 5310-01-388-6974, 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 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-388-6974 |
| Primary Part Number | 2498-00-300PN12,10IN |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Leslie Controls, Inc. Dba Leslie Controls Inc |
| Status | ACTIVE |
| Overall Diameter | 1.493 INCHES NOMINAL IN |
| Material Document and Classification | ASTM B164 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | NICKEL ALLOY R-405 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.070 INCHES NOMINAL IN |
| Thickness | 0.090 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 |
|---|---|
| 2498-00-300PN12,10IN PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 2498-00-313PN12,10.00INSTYBTY3 | C/1 Advisory reference — outside the item-of-supply concept Circor Intl Inc |
| 2498-00-300PN12,10.00INCH | C/1 Advisory reference — outside the item-of-supply concept Circor Intl Inc |
| 2498-00-300PN12,10IN | 5/9 Secondary reference Circor Intl Inc |
NSN 5310-01-388-6974 is a Washer,flat, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-388-6974 has 1 manufacturer part number on file: 2498-00-300PN12,10IN (Leslie Controls, Inc. Dba Leslie Controls Inc).
Key specifications for 2498-00-300PN12,10IN: Overall Diameter: 1.493 INCHES NOMINAL IN; Material Document and Classification: ASTM B164 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; 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.