PartsTable
Technical Data Sheet
FH21AM ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The FUSEHOLDER,BLOCK is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 172 OR COPPER ALLOY 173 OR COPPER ALLOY 170 OR COPPER ALLOY 172 CONTACT, body_style: CLIP CONNECTED TYPE, overall_width: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN, base_thickness: 0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, coating_method: PLATED CONTACT, overall_height: 0.680 INCHES MINIMUM AND 0.720 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5920-00-841-9928, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO MRO_GENERAL FH21AM
NSN: 5920-00-841-9928
FSC: 5920
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY 172 OR COPPER ALLOY 173 OR COPPER ALLOY 170 OR COPPER ALLOY 172 CONTACT
body_styleCLIP CONNECTED TYPE
overall_width0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
base_thickness0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
coating_methodPLATED CONTACT
overall_height0.680 INCHES MINIMUM AND 0.720 INCHES MAXIMUM IN
overall_length1.360 INCHES MINIMUM AND 1.400 INCHES MAXIMUM IN
voltage_in_volts250.0
surface_treatmentCOPPER AND TIN AND ZINC CONTACT
mounting_hole_styleONE HOLE MOUNTING
mounting_hole_diameter0.138 INCHES NOMINAL IN
mounting_hole_quantity1
NSN5920-00-841-9928
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FUSEHOLDER,BLOCK TITLE COMPONENT PN FH21AM MFR FUSEHOLDER,BLOCK
KEY FEATURES
ACCOMMODATED FERRULE DIAMETER: 0.250 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER: 0.138 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-530 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE 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.).
FUSE TERMINAL TYPE ACCOMMODATED: FERRULE
INTERNAL CIRCUIT CONFIGURATION AND POLE QUANTITY: 1 POLE, MAINLINE, FUSED
VOLTAGE IN VOLTS: 250.0
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED FERRULE DIAMETER0.250 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER0.138 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-530 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE CONTACT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-530 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE TERMINAL
TEST DATA DOCUMENT81349-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.).
FUSE TERMINAL TYPE ACCOMMODATEDFERRULE
INTERNAL CIRCUIT CONFIGURATION AND POLE QUANTITY1 POLE, MAINLINE, FUSED
VOLTAGE IN VOLTS250.0
SURFACE TREATMENTSOLDER DIP AND TIN TERMINAL
MATERIALCOPPER ALLOY 172 OR COPPER ALLOY 173 OR COPPER ALLOY 170 OR COPPER ALLOY 172 TERMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
3551-1Interchangeable
interchangeable cross-reference
interchangeable
003551Interchangeable
interchangeable cross-reference
interchangeable
3480-8Interchangeable
interchangeable cross-reference
interchangeable
N35511Interchangeable
interchangeable cross-reference
interchangeable
35511-51Interchangeable
interchangeable cross-reference
interchangeable
28-2093Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FH21AM?
FH21AM is a FUSEHOLDER,BLOCK. It is classified as a MRO (MRO_GENERAL).
What parts can replace FH21AM?
There are 11 known substitutes for FH21AM: 3551-1, 003551, 3480-8 and 8 more. Substitute compatibility should be verified for your specific system.
Is FH21AM still available?
FH21AM is currently cancelled.
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