The Nut,self-Locking,barrel, cataloged under National Stock Number 5310-01-334-1248, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-334-1248 |
| Primary Part Number | 145SS131-20 |
| Item Name | Nut,self-Locking,barrel |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 145SS131-20 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 145SS131-20 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 145SS131-20 | 3/2 Design control — primary reference U.S. Government activity |
| 77272/145SS131-20 | 7/2 Vendor item drawing reference The Boeing Company |
| 145SS131-20 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
NSN 5310-01-334-1248 is a Nut,self-Locking,barrel, manufactured by The Boeing Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-334-1248 has 1 manufacturer part number on file: 145SS131-20 (The Boeing Company).
Key specifications for 145SS131-20: End Item Identification: CH-47D,CARGO,HEL. 0 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.