PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RCL30301Holder,radiac Sample

B Johnson William & Associates Inc · NSN 6665-00-558-0145 · FSC 6665 · No Item Name Available
Verified by PartsTable
NSN 6665-00-558-0145 — this item is cataloged by the U.S. Government under National Stock Number 6665-00-558-0145. Primary manufacturer part number: RCL30301.
Features
  • Holder,radiac Sample — FSC 6665
  • Style Designator: CYLINDRICAL
  • Specification/standard Data: MIL-H-21623 GOVERNMENT SPECIFICATION
  • Nondefinitive Spec/std Data: 1 TYPE
  • Overall Diameter: 2.000 INCHES NOMINAL IN
  • Material: ALUMINUM
  • 3 verified cross-references
  • Primary manufacturer: B Johnson William & Associates Inc
Applications
  • Applications requiring Aluminum construction
General Description

The Holder,radiac Sample, cataloged under National Stock Number 6665-00-558-0145, is classified within Federal Supply Class 6665 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is B Johnson William & Associates Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6665-00-558-0145
Primary Part NumberRCL30301
Item NameHolder,radiac Sample
FSC / FSG6665 / 66 — No Item Name Available
ManufacturerB Johnson William & Associates Inc
StatusACTIVE
Style DesignatorCYLINDRICAL
Specification/standard DataMIL-H-21623 GOVERNMENT SPECIFICATION
Nondefinitive Spec/std Data1 TYPE
Overall Diameter2.000 INCHES NOMINAL IN
MaterialALUMINUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-297-5035 INTERCHANGEABLE
Gasket
1560-00-436-759230301 INTERCHANGEABLE
Tank,fuel,aircraft
American Fuel Cell and Coated Fabrics Company, Llc
5950-00-635-4951P7707433-2 INTERCHANGEABLE
Transformer,power
Westinghouse Electric Corp
5845-00-856-4197 INTERCHANGEABLE
Transducer Subassembly,sonar
4730-01-016-2533 INTERCHANGEABLE
Spud,water Closet
6625-01-025-5984303-01 INTERCHANGEABLE
Voltmeter
Ballantine Laboratories Inc
4820-01-041-017030-301 INTERCHANGEABLE
Indicator,valve Opening
The Boeing Company Div Defense
7810-01-067-682930301 INTERCHANGEABLE
Net,volleyball
Carron Net Company, Inc. Dba Carron Net Co Inc
4310-01-270-235801005705 INTERCHANGEABLE
Ring,piston
Parker Hannifin Corp Fluidpower Group Cylinder Div
6140-01-290-65543030-1 INTERCHANGEABLE
Battery,storage
Mobile Energy Products, Inc. Dba Electro Energy
Cross-Reference Index
Part NumberManufacturer
RCL30301 B Johnson William & Associates Inc (USA)
MIL-H-21623 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
30301 Radiation Counter Laboratories Inc (USA)
Related Parts
5330-00-297-5035INTERCHANGEABLE
GASKET
1560-00-436-7592INTERCHANGEABLE
TANK,FUEL,AIRCRAFT
30301
5950-00-635-4951INTERCHANGEABLE
TRANSFORMER,POWER
P7707433-2
5845-00-856-4197INTERCHANGEABLE
TRANSDUCER SUBASSEMBLY,SONAR
4730-01-016-2533INTERCHANGEABLE
SPUD,WATER CLOSET
6625-01-025-5984INTERCHANGEABLE
VOLTMETER
303-01
4820-01-041-0170INTERCHANGEABLE
INDICATOR,VALVE OPENING
30-301
7810-01-067-6829INTERCHANGEABLE
NET,VOLLEYBALL
30301
4310-01-270-2358INTERCHANGEABLE
RING,PISTON
01005705
6140-01-290-6554INTERCHANGEABLE
BATTERY,STORAGE
3030-1
3455-01-307-3188INTERCHANGEABLE
CUTTER,MILLING,END
30301
4820-01-380-2546INTERCHANGEABLE
BALL,CHECK
30-301

Frequently Asked Questions

What is NSN 6665-00-558-0145?

NSN 6665-00-558-0145 is a Holder,radiac Sample, manufactured by B Johnson William & Associates Inc, classified under FSC 6665 (No Item Name Available). Status: active.

What are the part numbers for NSN 6665-00-558-0145?

NSN 6665-00-558-0145 has 3 cross-referenced part numbers: RCL30301 (B Johnson William & Associates Inc), MIL-H-21623 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 30301 (Radiation Counter Laboratories Inc).

What NSN replaces 6665-00-558-0145?

There are 12 known substitutes for 6665-00-558-0145: 5330-00-297-5035, 1560-00-436-7592, 5950-00-635-4951 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RCL30301?

Key specifications for RCL30301: Style Designator: CYLINDRICAL; Specification/standard Data: MIL-H-21623 GOVERNMENT SPECIFICATION; Nondefinitive Spec/std Data: 1 TYPE; Overall Length: 0.188 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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