The Seal,waveguide, cataloged under National Stock Number 5985-01-442-8381, 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 Development Company Inc Dba Microwave Development Company Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-442-8381 |
| Primary Part Number | 67112-205 |
| Item Name | Seal,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Development Company Inc Dba Microwave Development Company Inc |
| Status | ACTIVE |
| Seal Thickness | 0.595 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN |
| Style Designator | FOR RECTANGULAR WAVEGUIDE AND FLANGE |
| Seal Outside Width | 1.860 INCHES MINIMUM AND 1.890 INCHES MAXIMUM IN |
| Seal Inside Width | 1.348 INCHES MINIMUM AND 1.356 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| C99A9174-1 | Northrop Grumman Systems Corporation (USA) |
| 67112-205 PRIMARY | Microwave Development Company Inc Dba Microwave Development Company Inc (USA) |
| Reference | Meaning |
|---|---|
| C99A9174 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| MA14112QGM | 3/9 Design control — primary reference Varian Associates Inc Seg Sales and Service Vpd Sales and Service |
| MA141120 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-442-8381 is a Seal,waveguide, manufactured by Microwave Development Company Inc Dba Microwave Development Company Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-442-8381 has 2 manufacturer part numbers on file: C99A9174-1 (Northrop Grumman Systems Corporation), 67112-205 (Microwave Development Company Inc Dba Microwave Development Company Inc).
Key specifications for 67112-205: Seal Thickness: 0.595 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN; Style Designator: FOR RECTANGULAR WAVEGUIDE AND FLANGE; Seal Outside Width: 1.860 INCHES MINIMUM AND 1.890 INCHES MAXIMUM IN; Special Features: FREQUENCY RANGE, 9.0 TO 10.0 GHZ; MAX. VSWR, 1.10; MAX. INSERTION LOSS,0.05 DB; MAX. POWER, 5 KW CW; MAX. PRESSURE, 30 PSIG; WINDOW, QUARTZ GLASS; NICKEL PLATE FINISHED GHz. 4 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 5985-01-442-8381 has DEMIL Code B. 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.