The Pin-Rivet, cataloged under National Stock Number 5320-01-132-0551, 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 17 specifications, cited from the U.S. Government catalog. The record lists 14 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 16 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-132-0551 |
| Primary Part Number | HLT51YB-6-5 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Lubrication | SOLID FILM AND CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Fastener Length | 0.627 INCHES MINIMUM AND 0.647 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 | 0.190 INCHES IN |
| Grip Length | 0.317 INCHES MAXIMUM IN |
| Width Between Flats | 0.0791 INCHES MINIMUM AND 0.0806 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 | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.3016 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 |
|---|---|
| HLT51YB-6-5 PRIMARY | Hi-Shear Corporation (USA) |
| HLT51YC-6-5 PRIMARY | Hi-Shear Corporation (USA) |
| HLT51YC-6-5 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT51YB-6-5 | West Coast Aerospace, Inc. (USA) |
| HP4758-3-5 | Heartland Precision Fasteners Inc (USA) |
| HLT51YC-6-5 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT51YB-6-5 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT51YC-6-5 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT51YC-6-5 | West Coast Aerospace, Inc. (USA) |
| HLT51YC-6-5 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT51YB-6-5 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT51YB-6-5 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT51YB-6-5 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M758C3-5 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| Reference | Meaning |
|---|---|
| AIC-L-758C3-5 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| ST3M758C3-5 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HLT51YC-6-5 | 5/2 Secondary reference U.S. Government activity |
| HLT51YB-6-5 | 5/9 Secondary reference U.S. Government activity |
| HLT51TB-6-5 | 5/9 Secondary reference U.S. Government activity |
| HLT51YC-6-5 | 5/9 Secondary reference U.S. Government activity |
| MA4758-3-5 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| ST3M758C3-5 | 5/9 Secondary reference Huck International, Inc |
| 10111391 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HLT51TB-6-5 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| HLT51TB-6-5 | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies, Llc Dba PB Fasteners |
| HLT51YB-6-5 | 5/2 Secondary reference U.S. Government activity |
| HLT51TB-6-5 | C/1 Advisory reference — outside the item-of-supply concept Hi-Shear Corporation |
| HLT51YB-6-5 | 5/2 Secondary reference U.S. Government activity |
| HLT51YC-6-5 | 5/2 Secondary reference U.S. Government activity |
| 3929AS1132-C3-5 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 5320-01-132-0551 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-132-0551 has 14 manufacturer part numbers on file: HLT51YB-6-5 (Hi-Shear Corporation), HLT51YC-6-5 (Hi-Shear Corporation), HLT51YC-6-5 (Sps Technologies Ltd, Tj Brooks Division), HLT51YB-6-5 (West Coast Aerospace, Inc.), HP4758-3-5 (Heartland Precision Fasteners Inc) and 9 more.
Key specifications for HLT51YB-6-5: Shank Diameter: 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN; Lubrication: SOLID FILM AND CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Fastener Length: 0.627 INCHES MINIMUM AND 0.647 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.