The Waveguide Assembly, cataloged under National Stock Number 5985-00-443-3717, 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 Bae Systems Information and Electronic Systems Integration Inc.. Government technical data includes 29 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-443-3717 |
| Primary Part Number | G128-262-001 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Bae Systems Information and Electronic Systems Integration Inc. |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIP. |
| Tubing Wall Construction Style | SEAMLESS FIRST TUBING SEGMENT |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.15 |
| Supplementary Features | M54 TO P71 DEG C OPER TEMP |
| Flexibility | FLEXIBLE SECOND TUBING SEGMENT |
| Flexibility | RIGID FIRST TUBING SEGMENT |
| Waveguide Inside Width | 0.622 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 0.850 INCHES MINIMUM AND 0.870 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Outside Height | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Connecting Hole Diameter | 0.118 INCHES MINIMUM AND 0.123 INCHES MAXIMUM SECOND FLANGE SINGLE CONNECTION FACILITY IN |
| Thread Direction | RIGHT-HAND FIRST FLANGE FIRST CONNECTION FACILITY |
| Thread Direction | RIGHT-HAND FIRST FLANGE SECOND CONNECTION FACILITY |
| Nominal Thread Size | 0.086 INCHES FIRST FLANGE SECOND CONNECTION FACILITY IN |
| Nominal Thread Size | 0.112 INCHES FIRST FLANGE FIRST CONNECTION FACILITY IN |
| Waveguide Outside Height | 0.391 INCHES NOMINAL IN |
| Waveguide Outside Width | 0.702 INCHES NOMINAL IN |
| Flange Outside Width | 1.210 INCHES MINIMUM AND 1.230 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Outside Width | 1.530 INCHES MINIMUM AND 1.550 INCHES MAXIMUM FIRST FLANGE IN |
| Insertion Loss in Decibels | 0.20 |
| Surface Treatment | CHROMATE ALL FLANGE ALL SURFACES |
| Surface Treatment | CHROMATE FIRST TUBING SEGMENT ALL SURFACES |
| Surface Treatment | PAINT AND PRIMER ALL FLANGE OUTSIDE SURFACES |
| Surface Treatment | PAINT AND PRIMER FIRST TUBING SEGMENT OUTSIDE SURFACES |
| Waveguide Inside Height | 0.311 INCHES NOMINAL IN |
| Thread Class | 2B FIRST FLANGE FIRST CONNECTION FACILITY |
| Thread Class | 2B FIRST FLANGE SECOND CONNECTION FACILITY |
| Material | ALUMINUM ALLOY 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 |
|---|---|
| G128-262-001 | Microwave Engineering Corporation (USA) |
| G128-262-001 PRIMARY | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
| Reference | Meaning |
|---|---|
| G128-262-001 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| G128-262-001 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-00-443-3717 is a Waveguide Assembly, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-443-3717 has 2 manufacturer part numbers on file: G128-262-001 (Microwave Engineering Corporation), G128-262-001 (Bae Systems Information and Electronic Systems Integration Inc.).
Key specifications for G128-262-001: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIP.; Tubing Wall Construction Style: SEAMLESS FIRST TUBING SEGMENT; Flange Quantity: 2; Voltage Standing Wave Ratio: 1.15. 29 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 5985-00-443-3717 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.