The Pin-Rivet, cataloged under National Stock Number 5320-01-173-4819, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-173-4819 |
| Primary Part Number | ST3M825C4-7-23 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Shank Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Lubrication | SOLID FILM OR CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Head Height | 0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN |
| Fastener Length | 0.823 INCHES MINIMUM AND 0.843 INCHES MAXIMUM IN |
| Hardness Rating | 44.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Criticality Code Justification | FEAT |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 0.443 INCHES MAXIMUM IN |
| Width Between Flats | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Shear Strength | 125000 SINGLE POUNDS PER SQUARE INCH |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.387 INCHES MINIMUM AND 0.412 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| HLT64TB-8-7-23 | Hi-Shear Corporation (USA) |
| HLT64TB-8-7-23 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT64TB-8-7-23 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT64TB-8-7-23 | West Coast Aerospace, Inc. (USA) |
| ST3M825C4-7-23 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| ST3M825C8-7-23 | 5/9 Secondary reference The Boeing Company Div Defense |
| HLT64TB-8-7-23 | 5/2 Secondary reference U.S. Government activity |
| 10112062 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HLT64TB-8-7-23 | 5/9 Secondary reference U.S. Government activity |
| HLT64TB-8-7-23 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5320-01-173-4819 is a Pin-Rivet, manufactured by The Boeing Company Div Defense, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-173-4819 has 5 manufacturer part numbers on file: HLT64TB-8-7-23 (Hi-Shear Corporation), HLT64TB-8-7-23 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HLT64TB-8-7-23 (Sps Technologies, Llc Dba PB Fasteners), HLT64TB-8-7-23 (West Coast Aerospace, Inc.), ST3M825C4-7-23 (The Boeing Company Div Defense).
Key specifications for ST3M825C4-7-23: Shank Diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN; Lubrication: SOLID FILM OR CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Head Height: 0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN; Fastener Length: 0.823 INCHES MINIMUM AND 0.843 INCHES MAXIMUM IN. 19 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.