The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-280-6631, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-280-6631 |
| Primary Part Number | 2CX261 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Fastener Length | 2.250 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Thread Quantity Per Inch | 18 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2CX261 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 2CX261 | 5/9 Secondary reference Oshkosh Corp |
| 5340920 | 5/9 Secondary reference J. W. Speaker Corporation Dba Jw Speaker Corp |
NSN 5305-01-280-6631 is a Screw,cap,hexagon Head, manufactured by Oshkosh Defense Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-280-6631 has 1 manufacturer part number on file: 2CX261 (Oshkosh Defense Llc).
Key specifications for 2CX261: Fastener Length: 2.250 INCHES NOMINAL IN; Nominal Thread Diameter: 0.312 INCHES IN; End Item Identification: NSN 2320-01-304-2277 PLS (PALLETIZED LOADING SYSTEM);2320-01-442-1940, TRUCK, CBT, (COMMAND BRIDGE TRANSPORTER); Thread Quantity Per Inch: 18. 3 specifications are 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.