The Seal,waveguide, cataloged under National Stock Number 5985-00-552-0740, 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 Rms - Mitchel Field. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-552-0740 |
| Primary Part Number | 743300 |
| Item Name | Seal,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| FSC Application Data | MULTIAPPLICATION |
| Seal Thickness | 0.125 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR SOLID SEAL |
| Seal Outside Height | 3.500 INCHES NOMINAL IN |
| Seal Outside Width | 9.375 INCHES NOMINAL IN |
| Material | GLASS SINGLE SEAL |
| 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 |
|---|---|
| 743300 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 5985-00-552-0740 is a Seal,waveguide, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-552-0740 has 1 manufacturer part number on file: 743300 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 743300: FSC Application Data: MULTIAPPLICATION; Seal Thickness: 0.125 INCHES NOMINAL IN; Style Designator: RECTANGULAR SOLID SEAL; Seal Outside Height: 3.500 INCHES NOMINAL IN. 6 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 5985-00-552-0740 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.