The Indicator,vertical Velocity, cataloged under National Stock Number 6610-00-166-0233, is classified within Federal Supply Class 6610 (Flight Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Avionics Specialties, Inc.. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6610-00-166-0233 |
| Primary Part Number | SLZ8126 |
| Item Name | Indicator,vertical Velocity |
| FSC / FSG | 6610 / 66 — Flight Instruments |
| Manufacturer | Avionics Specialties, Inc. |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 THREADED BEZEL |
| Length | 5.000 INCHES MINIMUM AND 5.500 INCHES MAXIMUM IN |
| Mechanical Connection Quantity | 1 |
| Mechanical Connection Type | BOSS AND INTERNAL STRAIGHT THREAD |
| Mechanical Connection Size | 0.437 IN. DIA,20 UNF,CLASS 3B IN |
| Height | 2.360 INCHES MINIMUM AND 2.390 INCHES MAXIMUM IN |
| Width | 2.360 INCHES MINIMUM AND 2.390 INCHES MAXIMUM IN |
| Pointer Finish | NONLUMINOUS SINGLE POINTER |
| Pointer Purpose | DIRECTIONAL |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY SOURCE DOCUMENT NO. 206-070-990 |
| 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 |
|---|---|
| SLZ8126 | Avionics Specialties, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 206-070-990 | 1/3 Source control — Government-approved source U.S. Government activity |
| 206-070-990-1 | 5/3 Secondary reference U.S. Government activity |
NSN 6610-00-166-0233 is a Indicator,vertical Velocity, manufactured by Avionics Specialties, Inc., classified under FSC 6610, Flight Instruments. Status: active.
NSN 6610-00-166-0233 has 1 manufacturer part number on file: SLZ8126 (Avionics Specialties, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 6610-01-170-7107, 6610-01-175-2078. Verify interchangeability with system specifications before substitution.
Key specifications for SLZ8126: Mounting Facility Type and Quantity: 1 THREADED BEZEL; Length: 5.000 INCHES MINIMUM AND 5.500 INCHES MAXIMUM IN; Mechanical Connection Quantity: 1; Mechanical Connection Type: BOSS AND INTERNAL STRAIGHT THREAD. 10 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.