The Ring Proving, cataloged under National Stock Number 5280-01-420-9057, is classified within Federal Supply Class 5280 (Sets, Kits, and Outfits of Measuring Tools) of the Measuring Tools group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5280-01-420-9057 |
| Item Name | Ring Proving |
| FSC / FSG | 5280 / 52 — Sets, Kits, and Outfits of Measuring Tools |
| Status | ACTIVE |
| General Characteristics Item Description | 1000 LB CAPACITY LBS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 20-192 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5280-01-420-9057 is a Ring Proving, classified under FSC 5280, Sets, Kits, and Outfits of Measuring Tools. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 1005-01-688-0876. Verify interchangeability with system specifications before substitution.
Key specifications for 5280-01-420-9057: General Characteristics Item Description: 1000 LB CAPACITY LBS. 1 specification is 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.