The Washer,flat, cataloged under National Stock Number 5310-01-690-5688, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Endries International, Inc. Dba Servtonics, an Endries International, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-690-5688 |
| Primary Part Number | 25115XX0209XX016XXCA-ZZZZ |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Endries International, Inc. Dba Servtonics, an Endries International, Inc. |
| Status | ACTIVE |
| Overall Diameter | 0.209 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL PROPERTY CLASS 18.8 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.115 INCHES NOMINAL IN |
| Thickness | 0.016 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 |
|---|---|
| 25115XX0209XX016XXCA-ZZZZ PRIMARY | Endries International, Inc. Dba Servtonics, an Endries International, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3-900-346 | 7/2 Vendor item drawing reference Anritsu Company |
NSN 5310-01-690-5688 is a Washer,flat, manufactured by Endries International, Inc. Dba Servtonics, an Endries International, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-690-5688 has 1 manufacturer part number on file: 25115XX0209XX016XXCA-ZZZZ (Endries International, Inc. Dba Servtonics, an Endries International, Inc.).
Key specifications for 25115XX0209XX016XXCA-ZZZZ: Overall Diameter: 0.209 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Part Name Assigned by Controlling Agency: WASHER,FLAT NO.4. 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.