The Seal,waveguide, cataloged under National Stock Number 5985-01-274-6475, 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 American Beryllia Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Seal,waveguide |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | American Beryllia Inc (CAGE 1U1C3) |
| Parameter | Value |
|---|---|
| NSN | 5985-01-274-6475 |
| Primary Part Number | CM4541-000 |
| Item Name | Seal,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | American Beryllia Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| CM4541-000 | American Beryllia Inc (USA) |
| Reference | Meaning |
|---|---|
| 2901392 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| CM4541 | 5/9 Secondary reference General Ceramics Inc National Beryllia Div |
| CM4541-000 | 3/9 Design control — primary reference General Ceramics Inc National Beryllia Div |
NSN 5985-01-274-6475 is a Seal,waveguide, manufactured by American Beryllia Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-274-6475 has 1 manufacturer part number on file: CM4541-000 (American Beryllia Inc).
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 5985-01-274-6475 has DEMIL Code Q. 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.