The Fuseholder,block, cataloged under National Stock Number 5920-00-221-8372, is classified within Federal Supply Class 5920 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-00-221-8372 |
| Primary Part Number | FH23HH |
| Item Name | Fuseholder,block |
| FSC / FSG | 5920 / 59 — No Item Name Available |
| Manufacturer | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Voltage in Volts | 250.0 |
| Mounting Hole Diameter | 0.138 INCHES NOMINAL IN |
| Center to Center Distance Between Outside Mounting Holes Along Width | 4.550 INCHES NOMINAL IN |
| Mounting Hole Style | IN-LINE ALONG THE WIDTH |
| Body Style | CLIP CONNECTED TYPE |
| Mounting Hole Quantity | 5 |
| Accommodated Ferrule Diameter | 0.250 INCHES NOMINAL IN |
| Base Thickness | 0.250 INCHES NOMINAL IN |
| Accommodated Fuse Length | 1.250 INCHES NOMINAL IN |
| Fuse Accommodation Quantity | 6 |
| Fuse Terminal Type Accommodated | FERRULE |
| Specification/standard Data | 58536-AA55518/02-018 MANUFACTURERS SPECIFICATION CONTROL |
| Terminal Type and Quantity | 12 TAB, SOLDER LUG |
| Internal Circuit Configuration and Pole Quantity | 6 POLE, MAINLINE, SOLID NEUTRAL |
| Current Carrying Rating in Amps | 20.0 |
| Coating Method | PLATED CONTACT |
| Test Data Document | 81349-MIL-F-21346 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.). |
| Material | COPPER ALLOY TERMINAL |
| Material | PLASTIC BODY |
| Surface Treatment | NICKEL CONTACT |
| Material | COPPER ALLOY CONTACT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FH23HH | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| FH23HM | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| A-A-55518 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| MIL-F-21346/3 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| M21346/3-31 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| AA55518/02-018 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
NSN 5920-00-221-8372 is a Fuseholder,block, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5920 (No Item Name Available). Status: active.
NSN 5920-00-221-8372 has 6 cross-referenced part numbers: FH23HH (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), FH23HM (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), A-A-55518 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), MIL-F-21346/3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M21346/3-31 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.
There are 3 known substitutes for 5920-00-221-8372: 5920-00-981-5803, 5920-01-348-4217, 5920-01-437-8850. Verify interchangeability with system specifications before substitution.
Key specifications for FH23HH: Voltage in Volts: 250.0; Mounting Hole Diameter: 0.138 INCHES NOMINAL IN; Center to Center Distance Between Outside Mounting Holes Along Width: 4.550 INCHES NOMINAL IN; Overall Length: 1.620 INCHES NOMINAL IN. 24 total characteristics are documented in the Federal Logistics Information System.