The Waveguide Assembly, cataloged under National Stock Number 5985-01-281-7333, 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 Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-281-7333 |
| Primary Part Number | 6186131-1 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Voltage Standing Wave Ratio | 1.10 |
| Style Designator | OFFSET BEND TYPE |
| Flexibility | FLEXIBLE FIRST TUBING SEGMENT |
| Flexibility | RIGID SECOND TUBING SEGMENT |
| Waveguide Center to Center Distance | 3.750 INCHES NOMINAL IN |
| Waveguide Length | 18.550 INCHES NOMINAL IN |
| Insertion Loss in Decibels | 0.15 |
| Material | ALUMINUM SECOND TUBING SEGMENT AND FLANGE |
| Material | COPPER FIRST TUBING SEGMENT |
| 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 |
|---|---|
| 6186131-1 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| TRS645121 | Microwave Engineering Corporation (USA) |
| 6186131-1 | Microtech Inc Dba Microtech Inc (USA) |
| Reference | Meaning |
|---|---|
| TRS45121 | 5/9 Secondary reference Ward Leonard Ct Llc |
NSN 5985-01-281-7333 is a Waveguide Assembly, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-281-7333 has 3 manufacturer part numbers on file: 6186131-1 (Lockheed Martin Corporation Div Rotary and Mission Systems), TRS645121 (Microwave Engineering Corporation), 6186131-1 (Microtech Inc Dba Microtech Inc).
Key specifications for 6186131-1: Voltage Standing Wave Ratio: 1.10; Style Designator: OFFSET BEND TYPE; Flexibility: FLEXIBLE FIRST TUBING SEGMENT; Flexibility: RIGID SECOND TUBING SEGMENT. 9 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 5985-01-281-7333 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.