The Nut,self-Locking,single Ball Sea, cataloged under National Stock Number 5310-01-423-4581, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. The record lists 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Nut,self-Locking,single Ball Sea |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); Bristol Industries, Llc (CAGE 27238); Howmet Global Fastening Systems Inc (CAGE 15653) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-423-4581 |
| Primary Part Number | KFN532DL7 |
| Item Name | Nut,self-Locking,single Ball Sea |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| KFN532DL7 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BH00625M7M PRIMARY | Bristol Industries, Llc (USA) |
| LE114-0035-0007 | Bristol Industries, Llc (USA) |
| KFN53DL7 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| LE114-0035-0007 | Howmet Global Fastening Systems Inc (USA) |
| LE114-0035-0007 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| LE114-0035-0007 | 7/2 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
| LE114-0035-0007 | 5/9 Secondary reference Hi-Shear Corporation |
| LE114-0035-0007 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-423-4581 is a Nut,self-Locking,single Ball Sea, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-423-4581 has 6 manufacturer part numbers on file: KFN532DL7 (Sps Technologies, Llc Dba PB Fasteners), BH00625M7M (Bristol Industries, Llc), LE114-0035-0007 (Bristol Industries, Llc), KFN53DL7 (Howmet Global Fastening Systems Inc), LE114-0035-0007 (Howmet Global Fastening Systems Inc) and 1 more.
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.