The Nut,self-Locking,castellated,hex, cataloged under National Stock Number 5310-01-449-2011, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Nut,self-Locking,castellated,hex |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | General Electric Company (CAGE 07482); Howmet Global Fastening Systems Inc (CAGE 15653); Sps Technologies, Llc Dba PB Fasteners (CAGE 56878) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-449-2011 |
| Primary Part Number | H49404-7 |
| Item Name | Nut,self-Locking,castellated,hex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 9131M75P25 | General Electric Company (USA) |
| H49404-7 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 73781CM-720 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 9131M75P25 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 9131M75P25 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
NSN 5310-01-449-2011 is a Nut,self-Locking,castellated,hex, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-449-2011 has 3 manufacturer part numbers on file: 9131M75P25 (General Electric Company), H49404-7 (Howmet Global Fastening Systems Inc), 73781CM-720 (Sps Technologies, Llc Dba PB Fasteners).
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.