The Gage,indicating,internal, cataloged under National Stock Number 5210-00-566-7971, is classified within Federal Supply Class 5210 (Measuring Tools, Craftsmen's) of the Measuring Tools group. The manufacturer of record is Lds Test and Measurement Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5210-00-566-7971 |
| Primary Part Number | BL185 |
| Item Name | Gage,indicating,internal |
| FSC / FSG | 5210 / 52 — Measuring Tools, Craftsmen's |
| Manufacturer | Lds Test and Measurement Llc |
| 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 |
NSN 5210-00-566-7971 is a Gage,indicating,internal, manufactured by Lds Test and Measurement Llc, classified under FSC 5210, Measuring Tools, Craftsmen's. Status: active.
NSN 5210-00-566-7971 has 2 manufacturer part numbers on file: BL185 (Lds Test and Measurement Llc), BL110 (Lds Test and Measurement Llc).
1 possible match (shared part number, not a government interchangeability claim): 5965-01-586-8055. Verify interchangeability with system specifications before substitution.
Key specifications for BL185: Special Features: INDICATOR,SURFACE,R. 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.