The Pin,step Taper-Lock, cataloged under National Stock Number 5315-01-004-4254, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Pin,step Taper-Lock |
| FSC / FSG | 5315 — Nails, Machine Keys, and Pins (FSG 53) |
| Manufacturers | Reid Products Inc. Dba Reid Products Inc (CAGE 59563); Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (CAGE 27624); Huck International, Inc (CAGE 17446); Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); The Boeing Company Div Defense (CAGE 76301) |
| Parameter | Value |
|---|---|
| NSN | 5315-01-004-4254 |
| Primary Part Number | ST3M690A803818 |
| Item Name | Pin,step Taper-Lock |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | The Boeing Company Div Defense |
| 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 |
|---|---|
| TL841-8038-18 | Reid Products Inc. Dba Reid Products Inc (USA) |
| TL841-8038-18 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M690A803818 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M690A803818 | Huck International, Inc (USA) |
| ST3M690A803818 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M690A803818 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| TL841-8038-18 | 5/9 Secondary reference U.S. Government activity |
| TL841-8038-18 | 5/9 Secondary reference U.S. Government activity |
| TL841-8038-18 | 5/9 Secondary reference U.S. Government activity |
| ST3M690A803818 | 5/2 Secondary reference U.S. Government activity |
| ST3M690A803818 | 5/9 Secondary reference U.S. Government activity |
| TL841-8038-18 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| ST3M690A803818 | 5/2 Secondary reference U.S. Government activity |
NSN 5315-01-004-4254 is a Pin,step Taper-Lock, manufactured by The Boeing Company Div Defense, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-004-4254 has 6 manufacturer part numbers on file: TL841-8038-18 (Reid Products Inc. Dba Reid Products Inc), TL841-8038-18 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), ST3M690A803818 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), ST3M690A803818 (Huck International, Inc), ST3M690A803818 (Sps Technologies, Llc Dba PB Fasteners) 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.