PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12FH1Fuseholder,block

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5920-01-277-1325 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-01-277-1325 — this item is cataloged by the U.S. Government under National Stock Number 5920-01-277-1325. Primary manufacturer part number: 12FH1.
Features
  • Fuseholder,block — FSC 5920
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • 2 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Fuseholder,block, cataloged under National Stock Number 5920-01-277-1325, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5920-01-277-1325
Primary Part Number12FH1
Item NameFuseholder,block
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5920-00-824-1515 INTERCHANGEABLE
Fuseholder,extractor Post
Cross-Reference Index
Part NumberManufacturer
12FH1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
800407 PC 28 L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA)
Related Parts
5920-00-824-1515INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST

Frequently Asked Questions

What is NSN 5920-01-277-1325?

NSN 5920-01-277-1325 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.

What are the part numbers for NSN 5920-01-277-1325?

NSN 5920-01-277-1325 has 2 cross-referenced part numbers: 12FH1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 800407 PC 28 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.).

What NSN replaces 5920-01-277-1325?

There is 1 known substitute for 5920-01-277-1325: 5920-00-824-1515. Verify interchangeability with system specifications before substitution.

What are the specifications of 12FH1?

Key specifications for 12FH1: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 2 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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