The Tuner,waveguide, cataloged under National Stock Number 5985-00-084-9103, 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 Microlab/fxr Llc. Government technical data includes 2 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 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 | 5985-00-084-9103 |
| Primary Part Number | S311A |
| Item Name | Tuner,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microlab/fxr Llc |
| Status | ACTIVE |
| Adjustment Method | SLIDING TYPE SHORTING CONTACT |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5985-00-084-9103 is a Tuner,waveguide, manufactured by Microlab/fxr Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-084-9103 has 2 manufacturer part numbers on file: 503239 (Microlab/fxr Llc), S311A (Microlab/fxr Llc).
2 possible matches (shared part number, not a government interchangeability claim): 1610-00-305-5345, 2530-00-441-6755. Verify interchangeability with system specifications before substitution.
Key specifications for S311A: Overall Height: 5.315 INCHES NOMINAL IN; Overall Length: 15.500 INCHES NOMINAL IN; Overall Width: 9.956 INCHES MAXIMUM IN; Adjustment Method: SLIDING TYPE SHORTING CONTACT. 2 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.
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.