The Coupling,waveguide, cataloged under National Stock Number 5985-00-697-8108, 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 Naval Sea Systems Command. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-697-8108 |
| Primary Part Number | 3145143 |
| Item Name | Coupling,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIP. |
| Coupling Outside Width | 2.080 INCHES MINIMUM AND 2.100 INCHES MAXIMUM IN |
| Style Designator | RECTANGULAR |
| Coupling Outside Height | 2.390 INCHES MINIMUM AND 2.410 INCHES MAXIMUM IN |
| Material | STEEL SINGLE TUBING SEGMENT |
| Coupling Overall Depth | 1.000 INCHES NOMINAL 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 |
|---|---|
| 63906 | Frontgrade Technologies Inc. (USA) |
| 3145143 PRIMARY | Naval Sea Systems Command (USA) |
| 3145143 | Microwave Engineering Corporation (USA) |
| 3145143 | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 3145143 | 5/9 Secondary reference Frontgrade Technologies Inc. |
| 63906 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-00-697-8108 is a Coupling,waveguide, manufactured by Naval Sea Systems Command, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-697-8108 has 4 manufacturer part numbers on file: 63906 (Frontgrade Technologies Inc.), 3145143 (Naval Sea Systems Command), 3145143 (Microwave Engineering Corporation), 3145143 (Lockheed Martin Corporation Div Rms).
3 possible matches (shared part number, not a government interchangeability claim): 4130-01-095-2718, 6060-01-154-4725, 4720-01-363-3110. Verify interchangeability with system specifications before substitution.
Key specifications for 3145143: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIP.; Coupling Outside Width: 2.080 INCHES MINIMUM AND 2.100 INCHES MAXIMUM IN; Style Designator: RECTANGULAR; Coupling Outside Height: 2.390 INCHES MINIMUM AND 2.410 INCHES MAXIMUM 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 5985-00-697-8108 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.