The Pin,straight,headed, cataloged under National Stock Number 5315-01-188-1863, 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. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5315-01-188-1863 |
| Primary Part Number | ST3M627-2-21 |
| Item Name | Pin,straight,headed |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-C-320,CL 2,TY 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Hole Arrangement Style | ONE END DRILLED |
| Under Head Length | 0.782 INCHES NOMINAL IN |
| First Hole Diameter | 0.066 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | STRAIGHT |
| Pin Head Diameter | 0.312 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.184 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN |
| Head Style | PAN NO. 2 (R1 NOT REQUIRED IN ITEM DESCRIPTION) |
| Height | 0.046 INCHES NOMINAL IN |
| Surface Treatment | CHROMIUM OVERALL |
| Shear Strength | 6150 DOUBLE POUNDS PER SQUARE INCH |
| Material | STEEL COMP XM-13 OVERALL |
| Distance From Centerline of Hole to End of Pin | 0.126 INCHES NOMINAL IN |
| 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 |
|---|---|
| ST3M627-2-21 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| ST3M627-2-21 | 5/9 Secondary reference Acme Machine Products |
| 10123201 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 3929AS1131-2-21 | C/1 Advisory reference — outside the item-of-supply concept Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| ST3M627-2-21 | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
NSN 5315-01-188-1863 is a Pin,straight,headed, manufactured by The Boeing Company Div Defense, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-188-1863 has 1 manufacturer part number on file: ST3M627-2-21 (The Boeing Company Div Defense).
Key specifications for ST3M627-2-21: Surface Treatment Document and Classification: QQ-C-320,CL 2,TY 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Hole Arrangement Style: ONE END DRILLED; Under Head Length: 0.782 INCHES NOMINAL IN; First Hole Diameter: 0.066 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN. 15 specifications are documented in the U.S. Government catalog.
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.