The Pin-Rivet, cataloged under National Stock Number 5320-01-168-7748, 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 20 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-168-7748 |
| Primary Part Number | 3M757C5-21-109 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Shank Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Lubrication | SOLID FILM AND CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Head Height | 0.1465 INCHES NOMINAL IN |
| Fastener Length | 1.802 INCHES MINIMUM AND 1.822 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 | COUNTERSUNK W/REVERSE CHAMFER |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Grip Length | 1.317 INCHES MAXIMUM IN |
| Width Between Flats | 0.1270 INCHES MINIMUM AND 0.1295 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Minimum Tensile Strength | 210000 POUNDS PER SQUARE INCH LBS |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.6335 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 |
|---|---|
| 3M757C5-21-109 PRIMARY | The Boeing Company Div Defense (USA) |
| HLT265TB-10-21-1 PRIMARY | Huck International, Inc (USA) |
| HLT265TB-10-21-109 | Huck International, Inc (USA) |
| ST3M757C5-21-109 | The Boeing Company Div Defense (USA) |
| HLT265TB-10-21-109 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT265TB-10-21-109 PRIMARY | Hi-Shear Corporation (USA) |
| HLT265TB-10-21-109 PRIMARY | West Coast Aerospace, Inc. (USA) |
| HLT265TB-10-21-109 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 10111993 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HLT265TB-10-21-109 | 3/2 Design control — primary reference U.S. Government activity |
| HLT265TB-10-21-109 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-168-7748 is a Pin-Rivet, manufactured by The Boeing Company Div Defense, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-168-7748 has 8 manufacturer part numbers on file: 3M757C5-21-109 (The Boeing Company Div Defense), HLT265TB-10-21-1 (Huck International, Inc), HLT265TB-10-21-109 (Huck International, Inc), ST3M757C5-21-109 (The Boeing Company Div Defense), HLT265TB-10-21-109 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 3 more.
Key specifications for 3M757C5-21-109: Shank Diameter: 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN; Lubrication: SOLID FILM AND CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Head Height: 0.1465 INCHES NOMINAL IN; Fastener Length: 1.802 INCHES MINIMUM AND 1.822 INCHES MAXIMUM IN. 20 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.