The Hardware Kit,mechanic Equipment, cataloged under National Stock Number 5340-01-590-6956, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-590-6956 |
| Primary Part Number | 520-12815-33 |
| Item Name | Hardware Kit,mechanic Equipment |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
| Status | ACTIVE |
| 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 |
|---|---|
| 520-12815-33 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| 520-12815-33 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 520-12815-33 | Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace (USA) |
| 520-12815-33 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| 520-12815-33 | Heartland Precision Fasteners Inc (USA) |
| 520-12815-33 | West Coast Aerospace Inc (USA) |
| 520-12815-33 | Howmet Global Fastening Systems Inc Div Assembly Tooling Division (USA) |
| Reference | Meaning |
|---|---|
| 520-12815-33 | 3/2 Design control — primary reference U.S. Government activity |
| 520-12815-33 | 5/2 Secondary reference U.S. Government activity |
| 520-12815-33 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-01-590-6956 is a Hardware Kit,mechanic Equipment, manufactured by Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-590-6956 has 7 manufacturer part numbers on file: 520-12815-33 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), 520-12815-33 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 520-12815-33 (Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace), 520-12815-33 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), 520-12815-33 (Heartland Precision Fasteners Inc) and 2 more.
Key specifications for 520-12815-33: Part Name Assigned by Controlling Agency: FASTENER KIT; End Item Identification: B-52 AIRCRAFT. 0 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.