The Pin-Rivet, cataloged under National Stock Number 5320-00-323-6041, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 13 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-00-323-6041 |
| Primary Part Number | HL644YE-6-8 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.189 INCHES MINIMUM AND 0.190 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 | 0.079 INCHES MINIMUM AND 0.081 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 |
|---|---|
| HL644LL-6-8 | Huck International, Inc (USA) |
| HL644YE-6-8 | Huck International, Inc (USA) |
| HL644YE-6-8 PRIMARY | Hi-Shear Corporation (USA) |
| HL644LL6-8 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| HL644YE-6-8 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HL644LL-6-8 | West Coast Aerospace, Inc. (USA) |
| HL644LL-6-8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL644YE-6-8 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| HL644YE-6-8 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL644YE-6-8 | Howmet Global Fastening Systems Inc (USA) |
| HL644YE-6-8 | West Coast Aerospace, Inc. (USA) |
| HL644YE-6-8 | Satair A/s (DNK) |
| HL644LL-6-8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| ST3M457C3-8 | 5/9 Secondary reference The Boeing Company Div Defense |
| 10450277 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| AIC-L-644-6-8 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| HL644LL-6-8 | 5/9 Secondary reference Hi-Shear Corporation |
| HL644YE-6-8 | 5/9 Secondary reference U.S. Government activity |
| HL644YE-6-8 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HL644LL6-8 | 5/9 Secondary reference U.S. Government activity |
| HL644LL6-8 | 5/9 Secondary reference Sps Technologies Inc |
| HL644YE-6-8 | 5/9 Secondary reference U.S. Government activity |
| MA4457-3-8 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
NSN 5320-00-323-6041 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-00-323-6041 has 13 manufacturer part numbers on file: HL644LL-6-8 (Huck International, Inc), HL644YE-6-8 (Huck International, Inc), HL644YE-6-8 (Hi-Shear Corporation), HL644LL6-8 (Fairchild Fasteners Europe - Vsd Gmbh), HL644YE-6-8 (Sps Technologies Ltd, Tj Brooks Division) and 8 more.
Key specifications for HL644YE-6-8: Shank Diameter: 0.189 INCHES MINIMUM AND 0.190 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.