The Screw,shoulder, cataloged under National Stock Number 5305-01-536-4448, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. The record lists 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Screw,shoulder |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAGE L4528); The Boeing Company Div Defense (CAGE 76301); Reid Products Inc. Dba Reid Products Inc (CAGE 59563); Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (CAGE 27624); Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (CAGE 06725) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-536-4448 |
| Primary Part Number | 3M1278E3D5A |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| 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) |
| Part Number | Manufacturer |
|---|---|
| TX1027E3D5YA | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 3M1278E3D5A PRIMARY | The Boeing Company Div Defense (USA) |
| 11863E3D5A | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1027E3D5YA | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1027E3D5YA | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| TX1027E3D5YA | Hi-Shear Corporation (USA) |
| TX1027E3D5YA | Sps Technologies, Llc Dba PB Fasteners (USA) |
| TX1027E3D5YA | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| TX1027E3D5YA | 5/2 Secondary reference U.S. Government activity |
| TX1027E3D5YA | 5/9 Secondary reference Sps Technologies Inc |
NSN 5305-01-536-4448 is a Screw,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-536-4448 has 8 manufacturer part numbers on file: TX1027E3D5YA (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 3M1278E3D5A (The Boeing Company Div Defense), 11863E3D5A (Reid Products Inc. Dba Reid Products Inc), TX1027E3D5YA (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), TX1027E3D5YA (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 3 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.