The Seal,waveguide, cataloged under National Stock Number 5985-01-442-8050, 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 Varian Associates Inc Seg Sales and Service Vpd Sales and Service. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-442-8050 |
| Primary Part Number | MA14090QFF |
| Item Name | Seal,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Varian Associates Inc Seg Sales and Service Vpd Sales and Service |
| Status | ACTIVE |
| Seal Thickness | 0.595 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN |
| Style Designator | FOR RECTANGULAR WAVEGUIDE AND FLANGE |
| Seal Outside Width | 1.610 INCHES MINIMUM AND 1.640 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 |
|---|---|
| MA14090QFF PRIMARY | Varian Associates Inc Seg Sales and Service Vpd Sales and Service (USA) |
| C99A9154-1 | Northrop Grumman Systems Corporation (USA) |
| 67090-204 PRIMARY | Microwave Development Company Inc Dba Microwave Development Company Inc (USA) |
| Reference | Meaning |
|---|---|
| C99A9154 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
NSN 5985-01-442-8050 is a Seal,waveguide, manufactured by Varian Associates Inc Seg Sales and Service Vpd Sales and Service, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-442-8050 has 3 manufacturer part numbers on file: MA14090QFF (Varian Associates Inc Seg Sales and Service Vpd Sales and Service), C99A9154-1 (Northrop Grumman Systems Corporation), 67090-204 (Microwave Development Company Inc Dba Microwave Development Company Inc).
Key specifications for MA14090QFF: Seal Thickness: 0.595 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN; Style Designator: FOR RECTANGULAR WAVEGUIDE AND FLANGE; Seal Outside Width: 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN; Special Features: FREQUENCY RANGE, 9.0 TO 10.0 GHZ; MAX. VSWR, 1.10 TI 1 GHZ; MAS. INSERTION LOSS, 0.50 DBS.; MAX. PRESSURE 40 PSIG; MATES WITH UG408/U CHOKE FLANCE; FINISH, NICKEL PLATED; WINDOW, QUARTZ GLASS; WAVEGUIDE PRESSURE WINDOW, RADAR GHz. 3 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 5985-01-442-8050 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.