The Waveguide Assembly, cataloged under National Stock Number 5985-00-552-0630, 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 L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 30 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-552-0630 |
| Primary Part Number | 77234 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | L3harris Technologies, Inc Div Space & Airborne Systems |
| Status | ACTIVE |
| FSC Application Data | LANDING CONTROL,CENTRAL |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.628 INCHES NOMINAL SECOND FLANGE IN |
| Flange Inside Height | 0.634 INCHES NOMINAL FIRST FLANGE IN |
| Waveguide Height | 11.198 INCHES NOMINAL IN |
| Flange Quantity | 2 |
| Waveguide Leg Length | 3.906 INCHES NOMINAL IN |
| Style Designator | U-BEND TYPE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 1.122 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.875 INCHES NOMINAL SECOND FLANGE IN |
| Flange Connecting Hole Diameter | 0.169 INCHES NOMINAL FIRST FLANGE SINGLE CONNECTION FACILITY IN |
| Flange Connecting Hole Diameter | 0.189 INCHES NOMINAL SECOND FLANGE SINGLE CONNECTION FACILITY IN |
| Waveguide Center to Center Distance | 5.307 INCHES NOMINAL IN |
| Flange Inside Width | 1.253 INCHES NOMINAL SECOND FLANGE IN |
| Flange Inside Width | 1.258 INCHES NOMINAL FIRST FLANGE IN |
| Waveguide Outside Height | 0.625 INCHES NOMINAL IN |
| Waveguide Outside Width | 1.250 INCHES NOMINAL IN |
| Flange Depth | 0.437 INCHES NOMINAL SECOND FLANGE IN |
| Flange Depth | 0.906 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 1.875 INCHES NOMINAL SECOND FLANGE IN |
| Tubing Twist Type | STRAIGHT TWIST SINGLE TUBING SEGMENT |
| Tubing Twist Angle in Deg | 90.0 SINGLE TUBING SEGMENT |
| Surface Treatment | ENAMEL ALL FLANGE OUTSIDE SURFACES |
| Waveguide Inside Height | 0.497 INCHES NOMINAL IN |
| Waveguide Longer Leg Length | 8.760 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY ALL FLANGE |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) SECOND FLANGE SINGLE CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 2 UNTHREADED HOLE(S) FIRST 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 |
|---|---|
| 77234 PRIMARY | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
NSN 5985-00-552-0630 is a Waveguide Assembly, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-552-0630 has 1 manufacturer part number on file: 77234 (L3harris Technologies, Inc Div Space & Airborne Systems).
1 possible match (shared part number, not a government interchangeability claim): 4520-01-469-2962. Verify interchangeability with system specifications before substitution.
Key specifications for 77234: FSC Application Data: LANDING CONTROL,CENTRAL; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.628 INCHES NOMINAL SECOND FLANGE IN; Flange Inside Height: 0.634 INCHES NOMINAL FIRST FLANGE IN. 30 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 5985-00-552-0630 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.