The Adapter,waveguide, cataloged under National Stock Number 5985-01-057-0529, 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 Northrop Grumman Systems Corporation. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | Microtech Inc Dba Microtech Inc (CAGE 54647); Northrop Grumman Systems Corporation (CAGE 03956); Axillon Aerospace (baltimore) Inc. (CAGE 25223) |
| Parameter | Value |
|---|---|
| NSN | 5985-01-057-0529 |
| Primary Part Number | 1887881 |
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| 1887881 | Microtech Inc Dba Microtech Inc (USA) |
| 1887881 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 1621-A-00 | Axillon Aerospace (baltimore) Inc. (USA) |
| Reference | Meaning |
|---|---|
| 1887881 | 5/9 Secondary reference Lexan Industries, Inc Dba Struthers Electronics Div Struthers Electronics |
| 114036 | 5/9 Secondary reference Lexan Industries, Inc Dba Struthers Electronics Div Struthers Electronics |
| 1621-A-00 | 5/9 Secondary reference Atlantic Microwave Corporation Div Cobham Electronic Systems |
NSN 5985-01-057-0529 is a Adapter,waveguide, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-057-0529 has 3 manufacturer part numbers on file: 1887881 (Microtech Inc Dba Microtech Inc), 1887881 (Northrop Grumman Systems Corporation), 1621-A-00 (Axillon Aerospace (baltimore) Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3110-01-296-0189. Verify interchangeability with system specifications before substitution.
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 5985-01-057-0529 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.