The Washer,flat, cataloged under National Stock Number 5310-01-641-5068, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-641-5068 |
| Primary Part Number | J2655FBN0500S1P |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Overall Diameter | 1.000 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | BLANK RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.531 INCHES NOMINAL IN |
| Thickness | 0.063 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 |
|---|---|
| 782-7666609 ITEM 55 | Naval Sea Systems Command (USA) |
| J2655FBN0500S1P PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| J2655FBN0500S1P | 3/9 Design control — primary reference U.S. Government activity |
NSN 5310-01-641-5068 is a Washer,flat, manufactured by Sae International Dba Sae International, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-641-5068 has 2 manufacturer part numbers on file: 782-7666609 ITEM 55 (Naval Sea Systems Command), J2655FBN0500S1P (Sae International Dba Sae International).
Key specifications for J2655FBN0500S1P: Overall Diameter: 1.000 INCHES NOMINAL IN; Cross-Sectional Shape Style: BLANK RECTANGULAR; Peripheral Shape Style: ROUND; Part Name Assigned by Controlling Agency: WASHER ROUND FLAT. 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.