PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2149-12Plug,fusible

Bellofram Corporation · NSN 5340-00-058-4868 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-058-4868 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-058-4868. Primary manufacturer part number: 2149-12.
Features
  • Plug,fusible — FSC 5340
  • Material: COPPER ALLOY CASING
  • Size Designation: 1/2 INCH IN
  • Features Provided: CORE AND HEAT NUMBER
  • Material: COPPER ALLOY CORE
  • Thread Size and Series/type Designator: 2-1/2-18 UNS
  • Usage Location: INSIDE
  • Core Diameter: 0.925 INCHES NOMINAL IN
Applications
  • Applications requiring Copper Alloy Casing construction
General Description

The Plug,fusible, cataloged under National Stock Number 5340-00-058-4868, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bellofram Corporation. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-058-4868
Primary Part Number2149-12
Item NamePlug,fusible
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerBellofram Corporation
StatusACTIVE
MaterialCOPPER ALLOY CASING
Size Designation1/2 INCH IN
Features ProvidedCORE AND HEAT NUMBER
MaterialCOPPER ALLOY CORE
Thread Size and Series/type Designator2-1/2-18 UNS
Usage LocationINSIDE
Core Diameter0.925 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6515-01-348-8208 (238-3)
HAZMATNo
Unit of IssueEA
Verified Substitutes 10
6515-01-348-8208238-3 SUCCESSOR
Otoscope
Welch Allyn, Inc.
5935-00-256-38032383 INTERCHANGEABLE
Connector,plug,electrical
Entron Industries Limited Partnership Dba Entron Industries Property Div
2915-01-009-9228214912 INTERCHANGEABLE
Throat,pump Inlet
Eaton Corp Dba Eaton Aerospace Jackson
5985-01-057-508813057603-3 INTERCHANGEABLE
Attenuator,fixed
Us Army Aviation and Missile Command
5331-01-067-3449MS29513-383 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
6625-01-293-98152383 INTERCHANGEABLE
Analyzer,spectrum
Viavi Solutionsllc
2090-01-367-24222077 INTERCHANGEABLE
Pad,transom
Zodiac of North America, Inc. Dba Zodiac of North America Inc Div Milpro
6750-01-481-06138274037 INTERCHANGEABLE
Film,photographic
Eastman Kodak Co
6150-01-544-4337214912 INTERCHANGEABLE
Cable Assembly,ribbon,electrical
Northrop Grumman Systems Corporation
5331-01-733-2970GBV-F2-80-0044-TB-13 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
Cross-Reference Index
Part NumberManufacturer
2149-12 Bellofram Corporation (USA)
2383 Bellofram Corporation (USA)
2383 Desco Corp Marsh Bellofram Div (USA)
2149-12 Desco Corp Marsh Bellofram Div (USA)
Related Parts
SUCCESSOR 6515-01-348-8208 Otoscope · 238-3
5935-00-256-3803INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
2383
2915-01-009-9228INTERCHANGEABLE
THROAT,PUMP INLET
214912
5985-01-057-5088INTERCHANGEABLE
ATTENUATOR,FIXED
13057603-3
5331-01-067-3449INTERCHANGEABLE
O-RING
MS29513-383
6625-01-293-9815INTERCHANGEABLE
ANALYZER,SPECTRUM
2383
2090-01-367-2422INTERCHANGEABLE
PAD,TRANSOM
2077
6750-01-481-0613INTERCHANGEABLE
FILM,PHOTOGRAPHIC
8274037
6150-01-544-4337INTERCHANGEABLE
CABLE ASSEMBLY,RIBBON,ELECTRICAL
214912
5331-01-733-2970INTERCHANGEABLE
O-RING
GBV-F2-80-0044-TB-13

Frequently Asked Questions

What is NSN 5340-00-058-4868?

NSN 5340-00-058-4868 is a Plug,fusible, manufactured by Bellofram Corporation, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-058-4868?

NSN 5340-00-058-4868 has 4 cross-referenced part numbers: 2149-12 (Bellofram Corporation), 2383 (Bellofram Corporation), 2383 (Desco Corp Marsh Bellofram Div), 2149-12 (Desco Corp Marsh Bellofram Div).

What NSN replaces 5340-00-058-4868?

There are 10 known substitutes for 5340-00-058-4868: 6515-01-348-8208, 5935-00-256-3803, 2915-01-009-9228 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2149-12?

Key specifications for 2149-12: Material: COPPER ALLOY CASING; Size Designation: 1/2 INCH IN; Features Provided: CORE AND HEAT NUMBER; Material: COPPER ALLOY CORE. 8 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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