The Washer,flat, cataloged under National Stock Number 5310-01-588-0242, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Suburban Bolt & Supply Co. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-588-0242 |
| Primary Part Number | A0581000USSW8Z |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Suburban Bolt & Supply Co |
| 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 |
|---|---|
| A0581000USSW8Z PRIMARY | Suburban Bolt & Supply Co (USA) |
| AEW24XA0N000BD6AB1 PRIMARY | The American Society of Mechanical Engineers (USA) |
| Reference | Meaning |
|---|---|
| B18.21.1 | 5/1 Secondary reference U.S. Government activity |
NSN 5310-01-588-0242 is a Washer,flat, manufactured by Suburban Bolt & Supply Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-588-0242 has 2 manufacturer part numbers on file: A0581000USSW8Z (Suburban Bolt & Supply Co), AEW24XA0N000BD6AB1 (The American Society of Mechanical Engineers).
Key specifications for A0581000USSW8Z: Special Features: ASTM F 436, TYPE 1 - CARBON STEEL, ASTM B 633, TYPE II, SC 4 FOR LAV D-KIT; Part Name Assigned by Controlling Agency: 1 INCH USS FLATWASHER GR NUMBER 8 ZINC YELLOW IN; End Item Identification: 2320-01-494-7606 AND 2355-010539-3639. 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.