The Washer,flat, cataloged under National Stock Number 5310-01-540-5000, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Secure Communication Systems, Inc. Dba Benchmark Secure Technology Div Benchmark Secure Technology. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-540-5000 |
| Primary Part Number | 6SPLFWSSBO |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Secure Communication Systems, Inc. Dba Benchmark Secure Technology Div Benchmark Secure Technology |
| Status | ACTIVE |
| 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 |
|---|---|
| 6SPLFWSSBO PRIMARY | Secure Communication Systems, Inc. Dba Benchmark Secure Technology Div Benchmark Secure Technology (USA) |
NSN 5310-01-540-5000 is a Washer,flat, manufactured by Secure Communication Systems, Inc. Dba Benchmark Secure Technology Div Benchmark Secure Technology, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-540-5000 has 1 manufacturer part number on file: 6SPLFWSSBO (Secure Communication Systems, Inc. Dba Benchmark Secure Technology Div Benchmark Secure Technology).
Key specifications for 6SPLFWSSBO: Part Name Assigned by Controlling Agency: WASHER, FLAT, NUMBER. 6 (BO). 0 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.