The Gage,ring,master Setting, cataloged under National Stock Number 5220-01-482-9486, is classified within Federal Supply Class 5220 (Inspection Gages and Precision Layout Tools) of the Measuring Tools group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5220-01-482-9486 |
| Primary Part Number | T-R-12497-B |
| Item Name | Gage,ring,master Setting |
| FSC / FSG | 5220 / 52 — Inspection Gages and Precision Layout Tools |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Gaging Surface Inside Diameter | 1.2497 INCHES 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 |
|---|---|
| T-R-12497-B PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
| T-R-12497-B | Eaton Limited (GBR) |
NSN 5220-01-482-9486 is a Gage,ring,master Setting, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 5220, Inspection Gages and Precision Layout Tools. Status: active.
NSN 5220-01-482-9486 has 2 manufacturer part numbers on file: T-R-12497-B (Eaton Aerospace, Llc Dba Jackson South), T-R-12497-B (Eaton Limited).
Key specifications for T-R-12497-B: Special Features: MANUFACTURERS ITEM NAME: RING GAGE; STEEL MATERIAL; Gaging Surface Inside Diameter: 1.2497 INCHES IN. 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.