The Waveguide Assembly, cataloged under National Stock Number 5985-01-175-8841, 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 Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-175-8841 |
| Primary Part Number | AR3722-2 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc |
| Status | ACTIVE |
| FSC Application Data | WAVEGUIDE INSTL HELICOPTER |
| Flange Quantity | 2 |
| Flexibility | RIGID ALL TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) SINGLE FLANGE SINGLE CONNECTION FACILITY |
| 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 |
|---|---|
| AR3722-2 PRIMARY | Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc (USA) |
| Reference | Meaning |
|---|---|
| 70901-22910-102 | 7/2 Vendor item drawing reference Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 5985-01-175-8841 is a Waveguide Assembly, manufactured by Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-175-8841 has 1 manufacturer part number on file: AR3722-2 (Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc).
Key specifications for AR3722-2: FSC Application Data: WAVEGUIDE INSTL HELICOPTER; Flange Quantity: 2; Flexibility: RIGID ALL TUBING SEGMENT; End Item Identification: SH-60B HELICOPTER. 4 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 5985-01-175-8841 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.