The Seal,waveguide, cataloged under National Stock Number 5985-00-656-6943, 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 International Business Machines Corp Parts Order Center Dept E - 54. Government technical data includes 11 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-656-6943 |
| Primary Part Number | 6048800 |
| Item Name | Seal,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | International Business Machines Corp Parts Order Center Dept E - 54 |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Seal Thickness | 0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN |
| Precious Material | SILVER |
| Style Designator | FOR RECTANGULAR WAVEGUIDE AND FLANGE |
| Seal Outside Height | 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN |
| Seal Outside Width | 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN |
| Surface Treatment | SILVER SINGLE SEAL ALL SURFACES |
| Precious Material and Location | SEAL SURFACE SILVER |
| Seal Inside Height | 0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN |
| Material | COPPER ALLOY SINGLE SEAL |
| Seal Inside Width | 0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 6048800 | International Business Machines Corp Parts Order Center Dept E - 54 (USA) |
| 90WF26 | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA) |
| 6048800 | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| SM-A-702266 | 7/2 Vendor item drawing reference U.S. Government activity |
| MA1344 | 3/9 Design control — primary reference U.S. Government activity |
| SM-A-702266 | 5/9 Secondary reference Advanced Technical Materials, Inc. Dba a T M |
| 6048800 | 5/9 Secondary reference International Business Machines Corporation Dba IBM |
| 531645-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5985-00-656-6943 is a Seal,waveguide, manufactured by International Business Machines Corp Parts Order Center Dept E - 54, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-656-6943 has 3 manufacturer part numbers on file: 6048800 (International Business Machines Corp Parts Order Center Dept E - 54), 90WF26 (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc), 6048800 (Lockheed Martin Corporation Div Rotary and Mission Systems).
2 possible matches (shared part number, not a government interchangeability claim): 2320-01-154-6690, 5120-01-373-6790. Verify interchangeability with system specifications before substitution.
Key specifications for 6048800: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Seal Thickness: 0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN; Precious Material: SILVER; Style Designator: FOR RECTANGULAR WAVEGUIDE AND FLANGE. 11 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 5985-00-656-6943 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.