The Pin-Rivet, cataloged under National Stock Number 5320-01-044-8701, 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 18 specifications, cited from the U.S. Government catalog. The record lists 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-01-044-8701 |
| Primary Part Number | ST3M501-3-8 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Shank Diameter | 0.2021 INCHES MINIMUM AND 0.2026 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL |
| Head Height | 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN |
| Fastener Length | 0.815 INCHES MINIMUM AND 0.835 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | 258,FSCM 73197 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Grip Length | 0.505 INCHES MAXIMUM IN |
| Width Between Flats | 0.0791 INCHES MINIMUM AND 0.0806 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | PASSIVATE OVERALL |
| Shear Strength | 125000 SINGLE POUNDS PER SQUARE INCH |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.295 INCHES MINIMUM AND 0.315 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 |
|---|---|
| AIC-L-744LL6-8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL744LL-6-8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL744LL-6-8 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| HL744LL-6-8 | West Coast Aerospace, Inc. (USA) |
| ST3M501-3-8 PRIMARY | The Boeing Company Div Defense (USA) |
| HL744LL-6-8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL744LL-6-8 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL744LL-6-8 | Hi-Shear Corporation (USA) |
| HL744LL-6-8 | Satair A/s (DNK) |
| HL744LL6-8 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| HL744LL-6-8 | 5/2 Secondary reference U.S. Government activity |
| MA4501-3-8 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| HL744LL6-8 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-044-8701 is a Pin-Rivet, manufactured by The Boeing Company Div Defense, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-044-8701 has 10 manufacturer part numbers on file: AIC-L-744LL6-8 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL744LL-6-8 (Sps Technologies, Llc Dba PB Fasteners), HL744LL-6-8 (Fairchild Fasteners Europe - Vsd Gmbh), HL744LL-6-8 (West Coast Aerospace, Inc.), ST3M501-3-8 (The Boeing Company Div Defense) and 5 more.
Key specifications for ST3M501-3-8: Shank Diameter: 0.2021 INCHES MINIMUM AND 0.2026 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL; Head Height: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN; Fastener Length: 0.815 INCHES MINIMUM AND 0.835 INCHES MAXIMUM IN. 18 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.