The Pin-Rivet, cataloged under National Stock Number 5320-01-141-4111, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 15 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-141-4111 |
| Primary Part Number | HLT51YC-12-8 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Shank Diameter | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP AND SOLID FILM |
| Fastener Length | 1.035 INCHES MINIMUM AND 1.055 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | CROWN COUTERSUNK GREATER THAN 135 DEGREES |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Grip Length | 0.505 INCHES MAXIMUM IN |
| Width Between Flats | 0.1582 INCHES MINIMUM AND 0.1617 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Shear Strength | 125000 SINGLE POUNDS PER SQUARE INCH |
| 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 | 0.5604 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 |
|---|---|
| HP4758-6-8 | Heartland Precision Fasteners Inc (USA) |
| HLT51YB-12-8 | West Coast Aerospace, Inc. (USA) |
| HLT51YB-12-8 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT51YC-12-8 PRIMARY | Huck International, Inc (USA) |
| HLT51YB-12-8 PRIMARY | Grimes Aerospace Company (USA) |
| HLT51YC-12-8 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| ST3M758C6-8 | Huck International, Inc (USA) |
| HLT51YB-12-8 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT51YB-12-8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT51YC-12-8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT51YC-12-8 PRIMARY | Hi-Shear Corporation (USA) |
| HLT51YC-12-8 | West Coast Aerospace, Inc. (USA) |
| HLT51YC-12-8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT51YC-12-8 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT51YB-12-8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT51YB-12-8 PRIMARY | Hi-Shear Corporation (USA) |
| ST3M758C6-8 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| Reference | Meaning |
|---|---|
| HLT51YB-12-8 | 5/9 Secondary reference U.S. Government activity |
| 10111656 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HLT51YB-12-8 | 5/2 Secondary reference U.S. Government activity |
| HLT51YC-12-8 | 5/2 Secondary reference U.S. Government activity |
| HLT51TB-12-8 | 5/9 Secondary reference U.S. Government activity |
| HLT51TB-12-8 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HLT51TB-12-8 | 5/9 Secondary reference U.S. Government activity |
| HLT51YB-12-8 | 5/2 Secondary reference U.S. Government activity |
| AIC-L-758C6-8 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| HLT51YC-12-8 | 5/2 Secondary reference U.S. Government activity |
| HLT51TB-12-8 | 5/9 Secondary reference Hi-Shear Corporation |
| HLT51YB-12-8 | 5/9 Secondary reference U.S. Government activity |
| MA4758-6-8 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| HLT51YC-12-8 | 5/9 Secondary reference U.S. Government activity |
| ST3M758C6-8 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5320-01-141-4111 is a Pin-Rivet, manufactured by Huck International, Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-141-4111 has 17 manufacturer part numbers on file: HP4758-6-8 (Heartland Precision Fasteners Inc), HLT51YB-12-8 (West Coast Aerospace, Inc.), HLT51YB-12-8 (Sps Technologies Ltd, Tj Brooks Division), HLT51YC-12-8 (Huck International, Inc), HLT51YB-12-8 (Grimes Aerospace Company) and 12 more.
Key specifications for HLT51YC-12-8: Shank Diameter: 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP AND SOLID FILM; Fastener Length: 1.035 INCHES MINIMUM AND 1.055 INCHES MAXIMUM IN; Material Document and Classification: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 17 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.