The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-130-0572, 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 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | The Boeing Company Div Defense (CAGE 76301); Heartland Precision Fasteners Inc (CAGE 0ZC92); Fastener Innovation Technology, Inc. Dba F I T (CAGE 58998) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-130-0572 |
| Primary Part Number | ST3M560-4 |
| Item Name | Screw,externally Relieved Body |
| 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) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ST3M560-4 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M560-4 | Heartland Precision Fasteners Inc (USA) |
| FIT7043-4 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| Reference | Meaning |
|---|---|
| MA3560-4 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| 466604-006 | 3/2 Design control — primary reference U.S. Government activity |
| 10115227 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 1AM121070-4 | 5/9 Secondary reference First American Sales Co Inc |
NSN 5305-01-130-0572 is a Screw,externally Relieved Body, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-130-0572 has 3 manufacturer part numbers on file: ST3M560-4 (The Boeing Company Div Defense), ST3M560-4 (Heartland Precision Fasteners Inc), FIT7043-4 (Fastener Innovation Technology, Inc. Dba F I T).
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.