The Waveguide Assembly, cataloged under National Stock Number 5985-01-396-8581, 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. Dba Harris Div L3harris Technologies Inc Dba Harris Corporation. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-396-8581 |
| Primary Part Number | 3003988-101 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Div L3harris Technologies Inc Dba Harris Corporation |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS ALL TUBING SEGMENT |
| Flange Quantity | 2 |
| Waveguide First Leg Length | 1.750 INCHES NOMINAL IN |
| Waveguide Second Leg Length | 3.250 INCHES NOMINAL IN |
| Style Designator | FOUR BEND TYPE |
| Flexibility | RIGID ALL TUBING SEGMENT |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Waveguide Fourth Leg Length | 4.950 INCHES NOMINAL IN |
| Waveguide Fifth Leg Length | 1.400 INCHES NOMINAL IN |
| Tubing Twist Angle in Deg | 90.0 SINGLE TUBING SEGMENT |
| Material | ALUMINUM ALL TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Style | CONTACT TYPE ALL FLANGES |
| Waveguide Third Leg Length | 2.400 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3003988-101 PRIMARY | L3harris Technologies, Inc. Dba Harris Div L3harris Technologies Inc Dba Harris Corporation (USA) |
NSN 5985-01-396-8581 is a Waveguide Assembly, manufactured by L3harris Technologies, Inc. Dba Harris Div L3harris Technologies Inc Dba Harris Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-396-8581 has 1 manufacturer part number on file: 3003988-101 (L3harris Technologies, Inc. Dba Harris Div L3harris Technologies Inc Dba Harris Corporation).
Key specifications for 3003988-101: Tubing Wall Construction Style: SEAMLESS ALL TUBING SEGMENT; Flange Quantity: 2; Waveguide First Leg Length: 1.750 INCHES NOMINAL IN; Waveguide Second Leg Length: 3.250 INCHES NOMINAL IN. 14 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.