The Pin-Rivet, cataloged under National Stock Number 5320-01-564-0504, 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 13 specifications, cited from the U.S. Government catalog. The record lists 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5320-01-564-0504 |
| Primary Part Number | ST3M812D4-7 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Shank Diameter | 0.264 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Fastener Length | 0.863 INCHES MINIMUM AND 0.886 INCHES MAXIMUM IN |
| Head Style | FLUSH COUNTERSUNK |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN |
| Width Between Flats | 0.094 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.389 INCHES MINIMUM AND 0.394 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 | X |
| Part Number | Manufacturer |
|---|---|
| HLT731DL-8-7 | Hi-Shear Corporation (USA) |
| HLT731TB-8-7 | Hi-Shear Corporation (USA) |
| HLT731DL-8-7 | Huck International, Inc (USA) |
| HLT731TB-8-7 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT731TB-8-7 | Huck International, Inc (USA) |
| HLT731DL-8-7 | Computer Power Cabling Corp (USA) |
| HLT731DL-8-7 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT731DL-8-7 | West Coast Aerospace, Inc. (USA) |
| ST3M812D4-7 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HP4812D4-7 | Heartland Precision Fasteners Inc (USA) |
| HLT731TB-8-7 | Computer Power Cabling Corp (USA) |
| HLT731TB-8-7 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M812D4-7 | Houston Precision Fasteners I Lp (USA) |
| HLT731DL-8-7 | Tactair Fluid Controls Inc (USA) |
| HLT731DL-8-7 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT731TB-8-7 | West Coast Aerospace, Inc. (USA) |
| ST3M812D4-7 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| HLT731DL-8-7 | 5/2 Secondary reference U.S. Government activity |
| HLT731TB-8-7 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-564-0504 is a Pin-Rivet, manufactured by The Boeing Company Div Defense, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-564-0504 has 17 manufacturer part numbers on file: HLT731DL-8-7 (Hi-Shear Corporation), HLT731TB-8-7 (Hi-Shear Corporation), HLT731DL-8-7 (Huck International, Inc), HLT731TB-8-7 (Sps Technologies, Llc Dba PB Fasteners), HLT731TB-8-7 (Huck International, Inc) and 12 more.
Key specifications for ST3M812D4-7: Shank Diameter: 0.264 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN; Fastener Length: 0.863 INCHES MINIMUM AND 0.886 INCHES MAXIMUM IN; Head Style: FLUSH COUNTERSUNK; Nominal Thread Size: 0.250 INCHES IN. 13 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.