The Waveguide Assembly, cataloged under National Stock Number 5985-00-327-4454, 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 Microwave Engineering Corporation. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-327-4454 |
| Primary Part Number | TRS57176 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Flange Inside Height | 0.311 INCHES NOMINAL ALL FLANGES IN |
| Flange Quantity | 2 |
| Flexibility | FLEXIBLE FIRST TUBING SEGMENT |
| Flexibility | RIGID SECOND TUBING SEGMENT |
| Flange Inside Diameter | 1.000 INCHES NOMINAL ALL FLANGES IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.312 INCHES NOMINAL ALL FLANGES IN |
| Flange Inside Width | 0.622 INCHES NOMINAL ALL FLANGES IN |
| Thread Direction | RIGHT-HAND ALL FLANGES ALL CONNECTION FACILITIES |
| Nominal Thread Size | 0.138 INCHES ALL FLANGES ALL CONNECTION FACILITIES IN |
| Flange Depth | 0.375 INCHES NOMINAL ALL FLANGES IN |
| Flange Outside Width | 1.312 INCHES NOMINAL ALL FLANGES IN |
| Thread Class | 2B ALL FLANGES ALL CONNECTION FACILITIES |
| Material | ALUMINUM ALL FLANGE |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Style | CHOKE TYPE ALL FLANGES |
| 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 |
|---|---|
| TRS57176 PRIMARY | Microwave Engineering Corporation (USA) |
| 123SCAV5668-3 | Northrop Grumman Systems Corporation (USA) |
NSN 5985-00-327-4454 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-327-4454 has 2 manufacturer part numbers on file: TRS57176 (Microwave Engineering Corporation), 123SCAV5668-3 (Northrop Grumman Systems Corporation).
Key specifications for TRS57176: Flange Inside Height: 0.311 INCHES NOMINAL ALL FLANGES IN; Flange Quantity: 2; Flexibility: FLEXIBLE FIRST TUBING SEGMENT; Flexibility: RIGID SECOND TUBING SEGMENT. 17 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 5985-00-327-4454 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.