The Holder,key, cataloged under National Stock Number 5340-01-579-7752, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Ball Chain Manufacturing, Co., Inc. Dba Ball Chain Manufacturing. Government technical data includes 4 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-579-7752 |
| Primary Part Number | BLK15 |
| Item Name | Holder,key |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Ball Chain Manufacturing, Co., Inc. Dba Ball Chain Manufacturing |
| Status | ACTIVE |
| Style Designator | RING |
| Diameter | 0.609 INCHES NOMINAL IN |
| Surface Treatment | NICKEL OR COPPER ALLOY OVERALL |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| BLK15 PRIMARY | Ball Chain Manufacturing, Co., Inc. Dba Ball Chain Manufacturing (USA) |
NSN 5340-01-579-7752 is a Holder,key, manufactured by Ball Chain Manufacturing, Co., Inc. Dba Ball Chain Manufacturing, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-579-7752 has 1 manufacturer part number on file: BLK15 (Ball Chain Manufacturing, Co., Inc. Dba Ball Chain Manufacturing).
Key specifications for BLK15: Style Designator: RING; Diameter: 0.609 INCHES NOMINAL IN; Special Features: INSIDE DIA OF RING 0.500 NOMINAL INCH AND THICKNESS 0.094 NOMINAL INCH; PART NAME ASSIGNED BY CONTROLLING AGENCY: SPLIT KEY RING; Surface Treatment: NICKEL OR COPPER ALLOY OVERALL. 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.
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.