The Fuseholder,extractor Post, cataloged under National Stock Number 5920-01-512-4191, 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 Naval Sea Systems Command. Government technical data includes 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-512-4191 |
| Primary Part Number | 6387041-1 |
| Item Name | Fuseholder,extractor Post |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Accommodated Fuse Length | 1.250 INCHES NOMINAL IN |
| Mounting Hole Quantity | 1 |
| Screw Thread Quantity Per Inch | 32.0 |
| Flatted Side Bushing Hole Length | 0.815 INCHES MINIMUM AND 0.825 INCHES MAXIMUM IN |
| Body Style | BUSHING MOUNTED TYPE |
| Mounting Hole Style | BUSHING MOUNTING |
| Overall Diameter | 1.245 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN |
| Length From Front Protrusion to Mounting Surface | 1.075 INCHES MINIMUM AND 1.085 INCHES MAXIMUM IN |
| Voltage in Volts | 250.0 |
| Material Document and Classification | MIL-P-14, TYPE MAI-60 MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| Interruption Indicator Method | INCANDESCENT LAMP |
| Panel Thickness | 0.125 INCHES MAXIMUM IN |
| Accommodated Ferrule Diameter | 0.250 INCHES NOMINAL IN |
| Fuse Terminal Type Accommodated | FERRULE |
| Cap Diameter | 1.135 INCHES MINIMUM AND 1.145 INCHES MAXIMUM IN |
| Screw Thread Diameter | 0.138 INCHES NOMINAL IN |
| Bushing Hole Diameter | 0.876 INCHES MINIMUM AND 0.886 INCHES MAXIMUM IN |
| Environmental Protection | WATERTIGHT |
| Current Carrying Rating in Amps | 30.000 |
| Material | COPPER ALLOY CONTACT |
| Material | GLASS AND PLASTIC POLYESTER BODY |
| Terminal Type and Quantity | 1 TAB, SOLDER LUG AND 1 THREADED STUD AND 1 SCREW |
| Fuse Accommodation Quantity | 1 |
| Bushing Thread Length | 0.892 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6387041-1 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 8520-11-SL | 3/2 Design control — primary reference U.S. Government activity |
NSN 5920-01-512-4191 is a Fuseholder,extractor Post, manufactured by Naval Sea Systems Command, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-512-4191 has 1 manufacturer part number on file: 6387041-1 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5920-01-518-1561. Verify interchangeability with system specifications before substitution.
Key specifications for 6387041-1: Accommodated Fuse Length: 1.250 INCHES NOMINAL IN; Mounting Hole Quantity: 1; Screw Thread Quantity Per Inch: 32.0; Flatted Side Bushing Hole Length: 0.815 INCHES MINIMUM AND 0.825 INCHES MAXIMUM IN. 24 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.
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.