PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

90748Guard,switch

Espey Mfg and Electronics Corp · NSN 5930-01-644-9351 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-644-9351 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-644-9351. Primary manufacturer part number: 90748.
Features
  • Guard,switch — FSC 5930
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • 1 verified cross-reference
  • Primary manufacturer: Espey Mfg and Electronics Corp
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Guard,switch, cataloged under National Stock Number 5930-01-644-9351, is classified within Federal Supply Class 5930 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Espey Mfg and Electronics Corp. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-01-644-9351
Primary Part Number90748
Item NameGuard,switch
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerEspey Mfg and Electronics Corp
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6625-00-909-0455 INTERCHANGEABLE
Voltmeter
5930-01-643-496590748 INTERCHANGEABLE
Guard,switch
Espey Mfg and Electronics Corp
Cross-Reference Index
Part NumberManufacturer
90748 Espey Mfg and Electronics Corp (USA)
Related Parts
6625-00-909-0455INTERCHANGEABLE
VOLTMETER
5930-01-643-4965INTERCHANGEABLE
GUARD,SWITCH
90748

Frequently Asked Questions

What is NSN 5930-01-644-9351?

NSN 5930-01-644-9351 is a Guard,switch, manufactured by Espey Mfg and Electronics Corp, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-01-644-9351?

NSN 5930-01-644-9351 has 1 cross-referenced part number: 90748 (Espey Mfg and Electronics Corp).

What NSN replaces 5930-01-644-9351?

There are 2 known substitutes for 5930-01-644-9351: 6625-00-909-0455, 5930-01-643-4965. Verify interchangeability with system specifications before substitution.

What are the specifications of 90748?

Key specifications for 90748: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS 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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