The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-221-8177, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Hamilton Sundstrand Corporation. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-221-8177 |
| Primary Part Number | 81882-2 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Hamilton Sundstrand Corporation |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.005 TO 0.005 AND -0.0010 TO 0.0010 |
| Terminal Diameter | 0.028 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN |
| Terminal Length | 1.500 INCHES MINIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Width | 0.725 INCHES MAXIMUM IN |
| Equivalent Resistance Value in Ohms | 60.0 MAXIMUM |
| Overall Thickness | 0.352 INCHES MAXIMUM IN |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Drive Level Rating | 0.5 MILLIWATTS NOMINAL AND 3000.0 MICROAMPERES NOMINAL |
| Center to Center Distance Between Terminals | 0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN |
| Load Capacitance in Picofarads | 31.5 MINIMUM AND 32.5 MAXIMUM |
| Circuit Resonance | ANTIRESONANCE |
| Shunt Capacitance in Picofarads | 7.0 MAXIMUM |
| Operating Temp Range | -55.0 TO 105.0 CELSIUS AND -55.0 TO 125.0 CELSIUS DEGC |
| Material | GLASS COVER HOLDER |
| Specified Frequency | 4.608 MEGAHERTZ |
| Body Thickness | 0.317 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 81882-2 PRIMARY | Hamilton Sundstrand Corporation (USA) |
| Reference | Meaning |
|---|---|
| 81882-2 | 5/9 Secondary reference United Technologies Corp Hamilton Sundstrand Corp |
| 81882-2 | 5/9 Secondary reference Hamilton Sundstrand Corporation Dba Collins Aerospace |
NSN 5955-01-221-8177 is a Crystal Unit,quartz, manufactured by Hamilton Sundstrand Corporation, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-221-8177 has 1 manufacturer part number on file: 81882-2 (Hamilton Sundstrand Corporation).
Key specifications for 81882-2: Frequency Tolerance for Operating Temp in Percent: -0.005 TO 0.005 AND -0.0010 TO 0.0010; Terminal Diameter: 0.028 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN; Terminal Length: 1.500 INCHES MINIMUM IN; Mode of Oscillation: FUNDAMENTAL. 17 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.
NSN 5955-01-221-8177 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.