The Mastoid,artificial, cataloged under National Stock Number 6515-01-420-9261, is classified within Federal Supply Class 6515 (Medical and Surgical Instruments, Equipment, and Supplies) of the Medical, Dental, and Veterinary Equipment group. The manufacturer of record is Larson Davis Inc Dba Larson Davis Labs. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6515-01-420-9261 |
| Primary Part Number | AMC493 |
| Item Name | Mastoid,artificial |
| FSC / FSG | 6515 / 65 — Medical and Surgical Instruments, Equipment, and Supplies |
| Manufacturer | Larson Davis Inc Dba Larson Davis Labs |
| Status | ACTIVE |
| Exterior Container Weight | 0.5000 POUNDS LBS |
| General Characteristics Item Description | STABLE; REPRODUCIBLE SIMULATION OF THE MECHANICAL CHARACTERISTICS OF THE HUMAN HEAD; BUILT-IN FORCE TRANSDUCER WITH HIGH STABILITY CHARACTERISTIC; CALIBRATOR PROVIDES FOR CHECKING AND CALIBRATION OF ALL PARAMETERS; ADJUSTABLE STATIC FORCE FROM 2N TO 8N; 50 HZ TO 10 KHZ; 0.28 IN. HIGH; 1.2 IN. DIA; WEIGHT 8.7 GM; MASS 1.35 GM; STIFFNESS 350,000 N/M; RESISTANCE 20 N-S/M; DESIGNED FOR THE CALIBRATION OF BONE CONDUCTION HEARING AID, AND BONE VIBRATORS USED IN AUDIOMETRY; FOR USE WITH BONE CONDUCTION ACCESSORIES SPECIFIED IN NSN 6515-00-111-7338 KHz |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| AMC493 PRIMARY | Larson Davis Inc Dba Larson Davis Labs (USA) |
| Reference | Meaning |
|---|---|
| 95-0325 | 5/1 Secondary reference U.S. Government activity |
| AMC493 | 3/9 Design control — primary reference Larson Davis Inc |
NSN 6515-01-420-9261 is a Mastoid,artificial, manufactured by Larson Davis Inc Dba Larson Davis Labs, classified under FSC 6515, Medical and Surgical Instruments, Equipment, and Supplies. Status: active.
NSN 6515-01-420-9261 has 1 manufacturer part number on file: AMC493 (Larson Davis Inc Dba Larson Davis Labs).
1 possible match (shared part number, not a government interchangeability claim): 4933-01-687-1266. Verify interchangeability with system specifications before substitution.
Key specifications for AMC493: Exterior Container Weight: 0.5000 POUNDS LBS; General Characteristics Item Description: STABLE; REPRODUCIBLE SIMULATION OF THE MECHANICAL CHARACTERISTICS OF THE HUMAN HEAD; BUILT-IN FORCE TRANSDUCER WITH HIGH STABILITY CHARACTERISTIC; CALIBRATOR PROVIDES FOR CHECKING AND CALIBRATION OF ALL PARAMETERS; ADJUSTABLE STATIC FORCE FROM 2N TO 8N; 50 HZ TO 10 KHZ; 0.28 IN. HIGH; 1.2 IN. DIA; WEIGHT 8.7 GM; MASS 1.35 GM; STIFFNESS 350,000 N/M; RESISTANCE 20 N-S/M; DESIGNED FOR THE CALIBRATION OF BONE CONDUCTION HEARING AID, AND BONE VIBRATORS USED IN AUDIOMETRY; FOR USE WITH BONE CONDUCTION ACCESSORIES SPECIFIED IN NSN 6515-00-111-7338 KHz; Part Name Assigned by Controlling Agency: MASTOID ARTIFICIAL STABLE REPRODUCIBLE SIMULATION OF HUMAN HEAD. 2 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.