The Washer,flat, cataloged under National Stock Number 5310-01-591-8653, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Kamatics Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-591-8653 |
| Primary Part Number | KJT818708F |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Kamatics Corporation |
| Status | ACTIVE |
| Overall Diameter | 0.993 INCHES MINIMUM AND 1.007 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.504 INCHES MINIMUM AND 0.511 INCHES MAXIMUM IN |
| Thickness | 0.053 INCHES MINIMUM AND 0.063 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 |
|---|---|
| KJT818708F PRIMARY | Kamatics Corporation (USA) |
| Reference | Meaning |
|---|---|
| 5912550 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5310-01-591-8653 is a Washer,flat, manufactured by Kamatics Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-591-8653 has 1 manufacturer part number on file: KJT818708F (Kamatics Corporation).
Key specifications for KJT818708F: Overall Diameter: 0.993 INCHES MINIMUM AND 1.007 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL. 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.