The Tuner,waveguide, cataloged under National Stock Number 5985-00-683-4597, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Telephonics Corp/prd Instruments. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-683-4597 |
| Primary Part Number | 303A |
| Item Name | Tuner,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Telephonics Corp/prd Instruments |
| Status | ACTIVE |
| FSC Application Data | FIRE CONTROL MAINTENANCE AND REPAIR SHOP SPECIALIZED EQUIPMENT |
| Adjustment Method | INSIDE SLIDING |
| Material | COPPER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 303A PRIMARY | Telephonics Corp/prd Instruments (USA) |
| 8579243 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| X353 | C/1 Advisory reference — outside the item-of-supply concept Maury Microwave, Inc. Dba Maury Microwave |
| 303A | 5/9 Secondary reference Peraton Inc |
NSN 5985-00-683-4597 is a Tuner,waveguide, manufactured by Telephonics Corp/prd Instruments, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-683-4597 has 2 manufacturer part numbers on file: 303A (Telephonics Corp/prd Instruments), 8579243 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
7 possible matches (shared part number, not a government interchangeability claim): 5998-00-807-0515, 6625-00-932-1969, 6625-00-994-8679. Verify interchangeability with system specifications before substitution.
Key specifications for 303A: Overall Height: 1.625 INCHES NOMINAL IN; FSC Application Data: FIRE CONTROL MAINTENANCE AND REPAIR SHOP SPECIALIZED EQUIPMENT; Overall Length: 5.950 INCHES NOMINAL IN; Overall Width: 1.625 INCHES NOMINAL IN. 3 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5985-00-683-4597 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.