The Nut,self-Locking,single Ball Sea, cataloged under National Stock Number 5310-01-423-4577, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bristol Industries, Llc. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Bristol Industries, Llc (CAGE 27238); Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); Howmet Global Fastening Systems Inc (CAGE 15653); Huck International, Inc (CAGE 17446) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-423-4577 |
| Primary Part Number | KFN532DL6 |
| Item Name | Nut,self-Locking,single Ball Sea |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bristol Industries, Llc |
| 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 |
|---|---|
| KFN532DL6 PRIMARY | Bristol Industries, Llc (USA) |
| KFN532DL6 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| KFN532DL6 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| KFN532DL6 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| LE114-0035-0006 | 7/2 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
NSN 5310-01-423-4577 is a Nut,self-Locking,single Ball Sea, manufactured by Bristol Industries, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-423-4577 has 4 manufacturer part numbers on file: KFN532DL6 (Bristol Industries, Llc), KFN532DL6 (Sps Technologies, Llc Dba PB Fasteners), KFN532DL6 (Howmet Global Fastening Systems Inc), KFN532DL6 (Huck International, Inc).
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.