The Bulb,otoscope, cataloged under National Stock Number 6515-01-520-5740, 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 Welch Allyn, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6515-01-520-5740 |
| Primary Part Number | 03400-U |
| Item Name | Bulb,otoscope |
| FSC / FSG | 6515 / 65 — Medical and Surgical Instruments, Equipment, and Supplies |
| Manufacturer | Welch Allyn, Inc. |
| Status | ACTIVE |
| Operation Method | PLASTIC BULB |
| 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 |
|---|---|
| 03400-U PRIMARY | Welch Allyn, Inc. (USA) |
| 03400-U | Welch Allyn Australia Pty Ltd (AUS) |
| 8108124 | Anspec Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| 6515NCM040196 | 5/1 Secondary reference Defense Medical Standardization Board |
| 04-0357 | 5/1 Secondary reference U.S. Government activity |
| 03400-U | 3/9 Design control — primary reference Welch Allyn Holdings, Inc. |
NSN 6515-01-520-5740 is a Bulb,otoscope, manufactured by Welch Allyn, Inc., classified under FSC 6515, Medical and Surgical Instruments, Equipment, and Supplies. Status: active.
NSN 6515-01-520-5740 has 3 manufacturer part numbers on file: 03400-U (Welch Allyn, Inc.), 03400-U (Welch Allyn Australia Pty Ltd), 8108124 (Anspec Pty Ltd).
Key specifications for 03400-U: Special Features: BULB OTOSCOPE 2.5V HALOGEN LAMP; TO ILLUMINATE THE EXAM INSTRUMENT V; Part Name Assigned by Controlling Agency: BULB OTOSCOPE EXAM INSTRUMENT HALOGEN 2.5V V; End Item Identification: OTOSCOPE AND OPHTHALMOSCOPE,NSN: 6515-01-333-3165; Operation Method: PLASTIC BULB. 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.