The Pin-Rivet, cataloged under National Stock Number 5320-01-169-0119, 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 20 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 17 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-169-0119 |
| Primary Part Number | HLT51YC8-8 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Shank Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP OR SOLID FILM AND CETYL ALCOHOL |
| Fastener Length | 0.885 INCHES MINIMUM AND 0.905 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 | 0.250 INCHES IN |
| Grip Length | 0.505 INCHES MAXIMUM IN |
| Width Between Flats | 0.0947 INCHES MINIMUM AND 0.0967 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 | 28 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.3948 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 |
|---|---|
| ST3M758C4-8 | West Coast Aerospace, Inc. (USA) |
| HLT51YB-8-8 | West Coast Aerospace, Inc. (USA) |
| HLT51YC8-8 PRIMARY | Huck International, Inc (USA) |
| HLT51YC8-8 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT51YC-8-8 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| ST3M758C4-8 | Howmet Global Fastening Systems Inc (USA) |
| HLT51YC-8-8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT51YB8-8 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M758C4-8 | Huck International, Inc (USA) |
| ST3M758C4-8 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| ST3M758C4-8 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HLT51YB8-8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT51YB-8-8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT51YC8-8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT51YB8-8 | Hi-Shear Corporation (USA) |
| ST3M758C4-8 PRIMARY | The Boeing Company Div Defense (USA) |
| HLT51YB-8-8 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT51YC8-8 | Hi-Shear Corporation (USA) |
| HP4758-4-8 | Heartland Precision Fasteners Inc (USA) |
| HLT51YB8-8 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| HLT51TB-8-8 | 5/9 Secondary reference U.S. Government activity |
| HLT51TB-8-8 | 5/9 Secondary reference U.S. Government activity |
| HLT51TB-8-8 | 5/9 Secondary reference Huck International, Inc |
| HLT51YC-8-8 | 5/2 Secondary reference U.S. Government activity |
| HLT51TB-8-8 | 5/9 Secondary reference Hi-Shear Corporation |
| 10112001 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HLT51YB8-8 | 5/9 Secondary reference U.S. Government activity |
| AIC-L-758C4-8 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| HLT51YB8-8 | 5/2 Secondary reference U.S. Government activity |
| HLT51DL-8-8 | 5/9 Secondary reference Hi-Shear Corporation |
| HLT51YB-8-8 | 5/2 Secondary reference U.S. Government activity |
| HLT51YC-8-8 | 5/9 Secondary reference West Coast Aerospace, Inc. |
| ST3M758C4-8 | 5/9 Secondary reference Sps Technologies Inc |
| HLT51TB-8-8 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| MA4758-4-8 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| HLT51YC8-8 | 5/9 Secondary reference U.S. Government activity |
| HLT51YC8-8 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-169-0119 is a Pin-Rivet, manufactured by Huck International, Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-169-0119 has 20 manufacturer part numbers on file: ST3M758C4-8 (West Coast Aerospace, Inc.), HLT51YB-8-8 (West Coast Aerospace, Inc.), HLT51YC8-8 (Huck International, Inc), HLT51YC8-8 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HLT51YC-8-8 (Sps Technologies Ltd, Tj Brooks Division) and 15 more.
Key specifications for HLT51YC8-8: Shank Diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP OR SOLID FILM AND CETYL ALCOHOL; Fastener Length: 0.885 INCHES MINIMUM AND 0.905 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.