The Washer,flat, cataloged under National Stock Number 5310-01-533-6210, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hoerbiger America Rings & Packing Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-533-6210 |
| Primary Part Number | S8157N101-005 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hoerbiger America Rings & Packing Inc |
| Status | ACTIVE |
| Overall Diameter | 0.480 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN |
| Peripheral Shape Style | ROUND |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.230 INCHES MINIMUM AND 0.235 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 |
|---|---|
| S8157N101-005 | Hoerbiger America Rings & Packing Inc (USA) |
| S8157N101-005 | Serra Manufacturing Corporation Dba Serra Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| S8157N101-005 | 5/2 Secondary reference U.S. Government activity |
| S8157N101-005 | 3/2 Design control — primary reference U.S. Government activity |
| S8157N101-005 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-533-6210 is a Washer,flat, manufactured by Hoerbiger America Rings & Packing Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-533-6210 has 2 manufacturer part numbers on file: S8157N101-005 (Hoerbiger America Rings & Packing Inc), S8157N101-005 (Serra Manufacturing Corporation Dba Serra Manufacturing).
Key specifications for S8157N101-005: Overall Diameter: 0.480 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN; Peripheral Shape Style: ROUND; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT; Center Hole Shape Style: ROUND. 4 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.