The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-250-0568, is classified within Federal Supply Class 5955 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Howell Instruments, Inc. Dba Howell Instruments Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5955-00-250-0568 |
| Primary Part Number | 5264 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — No Item Name Available |
| Manufacturer | Howell Instruments, Inc. Dba Howell Instruments Inc |
| Status | CANCELLED |
| Specified Frequency | 455.000 KILOHERTZ |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Test Data Document | 81349-MILC3098 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Center to Center Distance Between Terminals | 0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN |
| Equivalent Resistance Value in Ohms | 3300.0 NOMINAL |
| Drive Level Rating | 1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM |
| Frequency Tolerance for Operating Temp in Percent | -0.020 TO 0.020 |
| Circuit Resonance | SERIES RESONANCE |
| Terminal Length | 0.223 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN |
| Shunt Capacitance in Picofarads | 2.5 MINIMUM AND 7.5 MAXIMUM |
| Terminal Diameter | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Body Thickness | 0.317 INCHES MAXIMUM IN |
| Operating Temp Range | -40.0 TO 70.0 CELSIUS DEGC |
| Overall Thickness | 0.352 INCHES MAXIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Length | 0.775 INCHES MAXIMUM IN |
| Body Width | 0.725 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 5264 | Howell Instruments, Inc. Dba Howell Instruments Inc (USA) |
| 0N152507-001 | Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services (USA) |
| 291-9983-00 | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| CR45U | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| CR45/U455K0000 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 291998300 | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| SC-A-46038 | Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA) |
| MILC3098-24 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| CR-45/U455.000KHZ | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-PRF-3098/24 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5955-00-250-0568 is a Crystal Unit,quartz, manufactured by Howell Instruments, Inc. Dba Howell Instruments Inc, classified under FSC 5955 (No Item Name Available). Status: cancelled.
NSN 5955-00-250-0568 has 10 cross-referenced part numbers: 5264 (Howell Instruments, Inc. Dba Howell Instruments Inc), 0N152507-001 (Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services), 291-9983-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), CR45U (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), CR45/U455K0000 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 5 more.
There are 11 known substitutes for 5955-00-250-0568: 5935-00-201-8467, 5120-00-261-2828, 3020-00-268-4200 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 5264: Overall Width: 0.757 INCHES MAXIMUM IN; Specified Frequency: 455.000 KILOHERTZ; Style Designator: OVAL BODY, PIN TERMINALS; Test Data Document: 81349-MILC3098 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).. 19 total characteristics are documented in the Federal Logistics Information System.
NSN 5955-00-250-0568 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.