The Pin-Rivet, cataloged under National Stock Number 5320-01-548-8336, 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 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-01-548-8336 |
| Primary Part Number | ST3M812D4-5 |
| 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 | 0.736 INCHES MINIMUM AND 0.756 INCHES MAXIMUM IN |
| Head Style | FLUSH COUNTERSUNK |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN |
| Width Between Flats | 0.094 INCHES MINIMUM AND 0.098 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 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-8-5 | Hi-Shear Corporation (USA) |
| HLT731TB-8-5 | Hi-Shear Corporation (USA) |
| HLT731DL-8-5 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT731TB-8-5 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT731DL-8-5 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT731DL-8-5 | West Coast Aerospace, Inc. (USA) |
| HLT731TB-8-5 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M812D4-5 | Houston Precision Fasteners I Lp (USA) |
| ST3M812D4-5 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HLT731DL-8-5 | Huck International, Inc (USA) |
| ST3M812D4-5 PRIMARY | The Boeing Company Div Defense (USA) |
| HP4812D4-5 | Heartland Precision Fasteners Inc (USA) |
| HLT731TB-8-5 | Huck International, Inc (USA) |
| HLT731TB-8-5 | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HLT731DL-8-5 | 5/2 Secondary reference U.S. Government activity |
| HLT731TB-8-5 | 5/2 Secondary reference U.S. Government activity |
| HLT731DL-8-5 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-548-8336 is a Pin-Rivet, manufactured by The Boeing Company Div Defense, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-548-8336 has 14 manufacturer part numbers on file: HLT731DL-8-5 (Hi-Shear Corporation), HLT731TB-8-5 (Hi-Shear Corporation), HLT731DL-8-5 (Sps Technologies, Llc Dba PB Fasteners), HLT731TB-8-5 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HLT731DL-8-5 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 9 more.
Key specifications for ST3M812D4-5: Shank Diameter: 0.264 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN; Fastener Length: 0.736 INCHES MINIMUM AND 0.756 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.