The Retainer,crystal Holder, cataloged under National Stock Number 5955-00-188-5571, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Burke Products Inc. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Retainer,crystal Holder |
| FSC / FSG | 5955 — Oscillators and Piezoelectric Crystals (FSG 59) |
| Manufacturers | Burke Products Inc (CAGE 27361); Kontron Europe Gmbh (CAGE C1834) |
| Parameter | Value |
|---|---|
| NSN | 5955-00-188-5571 |
| Primary Part Number | BP4926 |
| Item Name | Retainer,crystal Holder |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Burke Products Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| BP4926 | Burke Products Inc (USA) |
| C200039471-2 | Kontron Europe Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| A-1055 | 5/9 Secondary reference Burke Products Inc |
| C200039471-2 | 3/9 Design control — primary reference Systron-Donner Corp Microwave/instrument Div |
NSN 5955-00-188-5571 is a Retainer,crystal Holder, manufactured by Burke Products Inc, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-00-188-5571 has 2 manufacturer part numbers on file: BP4926 (Burke Products Inc), C200039471-2 (Kontron Europe Gmbh).
1 possible match (shared part number, not a government interchangeability claim): 5999-00-237-4420. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.