The Fuseholder,block, cataloged under National Stock Number 5920-00-142-7439, is classified within Federal Supply Class 5920 (Fuses, Arrestors, Absorbers, and Protectors) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Cooper Bussmann, Llc Dba Cooper Industries. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 49 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5920-00-142-7439 |
| Primary Part Number | BK-S-8002-1X-R |
| Item Name | Fuseholder,block |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Cooper Bussmann, Llc Dba Cooper Industries |
| Status | CANCELLED |
| Accommodated Fuse Length | 1.250 INCHES NOMINAL IN |
| Mounting Hole Quantity | 1 |
| Body Style | CLIP CONNECTED TYPE |
| Internal Circuit Configuration and Pole Quantity | 1 POLE, MAINLINE, FUSED |
| Mounting Hole Style | ONE HOLE MOUNTING |
| Coating Method | PLATED CONTACT |
| Voltage in Volts | 125.0 |
| Mounting Hole Diameter | 0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN |
| Accommodated Ferrule Diameter | 0.250 INCHES NOMINAL IN |
| Fuse Terminal Type Accommodated | FERRULE |
| Surface Treatment | NICKEL CONTACT |
| Current Carrying Rating in Amps | 10.0 |
| Base Thickness | 0.250 INCHES NOMINAL IN |
| Material | COPPER ALLOY 511 TERMINAL |
| Material | COPPER ALLOY CONTACT |
| Material | PLASTIC PHENOLIC BODY |
| Terminal Type and Quantity | 2 TAB, SOLDER LUG |
| Fuse Accommodation Quantity | 1 |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| BK-S-8002-1X-R PRIMARY | Cooper Bussmann, Llc Dba Cooper Industries (USA) |
| Reference | Meaning |
|---|---|
| 5360001427439 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 16016 | C/1 Advisory reference — outside the item-of-supply concept Veridian Engineering Inc |
| HRM00002 | 5/9 Secondary reference U.S. Government activity |
| 10534600 | 5/9 Secondary reference Henley Marine, Inc |
| Q11994-1 | 5/9 Secondary reference Eltek Energy Llc |
| 13220E4182 | 5/9 Secondary reference U.S. Government activity |
| 357001 | 5/9 Secondary reference Littelfuse, Inc. |
| 27575-1 | 5/9 Secondary reference Thales Usa, Inc. Div Air Mobility Solutions ("ams") |
| 15A0007-1 | 5/9 Secondary reference Navcom Defense Electronics, Inc. |
| 530379-1 | 5/9 Secondary reference U.S. Government activity |
| 666100-191 | 5/9 Secondary reference Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
| K4-1124-01 | 5/9 Secondary reference Kreonite Inc |
| HRM00-009 | 5/9 Secondary reference U.S. Government activity |
| 300-10359-21 | C/1 Advisory reference — outside the item-of-supply concept Alturdyne International |
| 5019-988 | 5/9 Secondary reference Raytheon Company Div Rmd Strategic |
| 1714304-2 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
| 3001-755 | C/1 Advisory reference — outside the item-of-supply concept Raytheon Company Div Rmd Strategic |
| AA55518/02 | C/1 Advisory reference — outside the item-of-supply concept Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| 357001 | C/1 Advisory reference — outside the item-of-supply concept Kaustine Furnace and Tank Corp |
| 517428-1 | 5/9 Secondary reference Instruments and Flight Research, Inc. |
NSN 5920-00-142-7439 is a Fuseholder,block, manufactured by Cooper Bussmann, Llc Dba Cooper Industries, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: cancelled.
NSN 5920-00-142-7439 has 1 manufacturer part number on file: BK-S-8002-1X-R (Cooper Bussmann, Llc Dba Cooper Industries).
6 possible matches (shared part number, not a government interchangeability claim): 6550-00-149-0296, 3110-00-171-0834, 4730-00-187-7610. Verify interchangeability with system specifications before substitution.
Key specifications for BK-S-8002-1X-R: Accommodated Fuse Length: 1.250 INCHES NOMINAL IN; Mounting Hole Quantity: 1; Overall Height: 0.703 INCHES NOMINAL IN; Body Style: CLIP CONNECTED TYPE. 18 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5920-00-142-7439 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.