The Pin-Rivet, cataloged under National Stock Number 5320-01-266-2576, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Heartland Precision Fasteners Inc. Government technical data includes 16 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-266-2576 |
| Primary Part Number | HP4758-5-5 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Heartland Precision Fasteners Inc |
| Status | ACTIVE |
| Shank Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Lubrication | SOLID FILM AND CETYL ALCOHOL |
| Fastener Length | 0.802 INCHES MINIMUM AND 0.822 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 | 0.3125 INCHES IN |
| Grip Length | 0.317 INCHES MAXIMUM IN |
| Width Between Flats | 0.1270 INCHES MINIMUM AND 0.1295 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| 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 | 0.4689 INCHES MINIMUM AND 0.4739 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 |
|---|---|
| HP4758-5-5 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| HLT51YB-10-5 | West Coast Aerospace, Inc. (USA) |
| HLT51YC-10-5 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| ST3M758C5-5 | Heartland Precision Fasteners Inc (USA) |
| HLT51YC-10-5 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT51YB-10-5 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT51YB-10-5 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT51YB-10-5 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT51YB-10-5 | Howmet Global Fastening Systems Inc (USA) |
| HLT51YC-10-5 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT51YC-10-5 PRIMARY | Huck International, Inc (USA) |
| HLT51YB-10-5 PRIMARY | Hi-Shear Corporation (USA) |
| HLT51YC-10-5 | Hi-Shear Corporation (USA) |
| HLT51YB-10-5 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT51YC-10-5 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT51YC-10-5 | West Coast Aerospace, Inc. (USA) |
| HLT51YB-10-5 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| HLT51YB-10-5 | 5/9 Secondary reference U.S. Government activity |
| HLT51YC-10-5 | 5/2 Secondary reference U.S. Government activity |
| 10112354 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| ST3M758C5-5 | 5/9 Secondary reference The Boeing Company Div Defense |
| AIC-L-758C5-5 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| MA4758-5-5 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| HLT51YC-10-5 | 5/9 Secondary reference U.S. Government activity |
| HLT51YB-10-5 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-266-2576 is a Pin-Rivet, manufactured by Heartland Precision Fasteners Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-266-2576 has 17 manufacturer part numbers on file: HP4758-5-5 (Heartland Precision Fasteners Inc), HLT51YB-10-5 (West Coast Aerospace, Inc.), HLT51YC-10-5 (Sps Technologies Ltd, Tj Brooks Division), ST3M758C5-5 (Heartland Precision Fasteners Inc), HLT51YC-10-5 (Sps Technologies, Llc Dba PB Fasteners) and 12 more.
Key specifications for HP4758-5-5: Shank Diameter: 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN; Lubrication: SOLID FILM AND CETYL ALCOHOL; Fastener Length: 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN; Material Document and Classification: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 16 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.