The Retainer,crystal Holder, cataloged under National Stock Number 5955-00-920-2276, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5955-00-920-2276 |
| Primary Part Number | 2217370 |
| Item Name | Retainer,crystal Holder |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Surface Treatment Document and Classification | MIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE |
| Unthreaded Mounting Hole Diameter | 0.128 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Style Designator | C CAP, SPRING LOADED, PILLAR TYPE HOLD DOWN |
| Accommodated Item Securing Device Type | SPRING CLIP |
| Surface Treatment | PASSIVATE |
| Material | STEEL CORROSION RESISTING |
| Distance From Mounting Surface to Retaining Surface | 1.781 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2217370 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 2C6 | 5/9 Secondary reference Birtcher Corp |
NSN 5955-00-920-2276 is a Retainer,crystal Holder, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-00-920-2276 has 1 manufacturer part number on file: 2217370 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 3431-01-333-1732. Verify interchangeability with system specifications before substitution.
Key specifications for 2217370: Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 2.078 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE; Unthreaded Mounting Hole Diameter: 0.128 INCHES NOMINAL SINGLE MOUNTING FACILITY IN. 8 specifications are documented in the U.S. Government catalog.
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.