The Mounting Base,electrical Equipme, cataloged under National Stock Number 5975-01-357-1081, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Hollingsead International, Llc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5975-01-357-1081 |
| Primary Part Number | 4520-101 |
| Item Name | Mounting Base,electrical Equipme |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Manufacturer | Hollingsead International, Llc |
| Status | ACTIVE |
| Center to Center Distance Between Mounting Holes Along Depth | 3.090 INCHES NOMINAL IN |
| Style Designator | FLAT TYPE |
| Center to Center Distance Between Mounting Holes Along Width | 12.000 INCHES NOMINAL IN |
| Maximum Weight Capacity | 3.5 POUNDS LBS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 70600-81805-101 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| 4520-101 PRIMARY | Hollingsead International, Llc (USA) |
| Reference | Meaning |
|---|---|
| 4520 | 5/9 Secondary reference Hollingsead International, Llc |
NSN 5975-01-357-1081 is a Mounting Base,electrical Equipme, manufactured by Hollingsead International, Llc, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
NSN 5975-01-357-1081 has 2 manufacturer part numbers on file: 70600-81805-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 4520-101 (Hollingsead International, Llc).
Key specifications for 4520-101: Center to Center Distance Between Mounting Holes Along Depth: 3.090 INCHES NOMINAL IN; Style Designator: FLAT TYPE; Overall Width: 13.990 INCHES NOMINAL IN; Center to Center Distance Between Mounting Holes Along Width: 12.000 INCHES NOMINAL IN. 4 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 5975-01-357-1081 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.