The Tympanometer, cataloged under National Stock Number 6515-01-663-4136, 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.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6515-01-663-4136 |
| Primary Part Number | 28600 |
| Item Name | Tympanometer |
| FSC / FSG | 6515 / 65 — Medical and Surgical Instruments, Equipment, and Supplies |
| Manufacturer | Welch Allyn, Inc. |
| 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 |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 28600 PRIMARY | Welch Allyn, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 6515NCM173574 | 5/1 Secondary reference Defense Medical Standardization Board |
| 1461461 | 5/1 Secondary reference U.S. Government activity |
NSN 6515-01-663-4136 is a Tympanometer, manufactured by Welch Allyn, Inc., classified under FSC 6515, Medical and Surgical Instruments, Equipment, and Supplies. Status: active.
NSN 6515-01-663-4136 has 1 manufacturer part number on file: 28600 (Welch Allyn, Inc.).
Key specifications for 28600: Special Features: TYMPANOMETER; AUTO TYMP PURE TONE AND TYMPANOMETRY SCREENER WITH TYMPANOMETRY MODE, REFLEX MODE, AND AUDIOMETRY MODE; WITH AUDIOMETRY HEADSET (EXTERNAL), THRESHOLD AUDIOMETRY CARD; FOR FAST DETECTION OF MIDDLE EAR PATHOLOGIES; 226 HZ TYMPANOGRAMS OFFER SUMMARY INFORMATION; ACOUSTIC REFLEX MEASUREMENTS AVAILABLE IN 500, 1000, 2000 AND 4000 HZ FREQUENCIES; Part Name Assigned by Controlling Agency: TYMPANOMETER. 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.