The Screw,panel Fastener, cataloged under National Stock Number 5305-01-478-4939, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-478-4939 |
| Primary Part Number | 261129-11 |
| Item Name | Screw,panel Fastener |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| CA22013-08-20 | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| 261129-11 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 261129-11 | 5/9 Secondary reference Lockheed Martin Corp |
| CA22013-08-20 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-478-4939 is a Screw,panel Fastener, manufactured by Lockheed Martin Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-478-4939 has 2 manufacturer part numbers on file: CA22013-08-20 (Howmet Global Fastening Systems Inc. Div Tridair Products), 261129-11 (Lockheed Martin Corporation).
Key specifications for 261129-11: Criticality Code Justification: AGAV; Part Name Assigned by Controlling Agency: PANEL,SCREW,FASTENER; End Item Identification: F-18 E/F FIGHTER AIRCRAFT. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.