The Pin-Rivet, cataloged under National Stock Number 5320-01-477-5598, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies Ltd, Tj Brooks Division. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-477-5598 |
| Primary Part Number | HLT50YC-10-21 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Sps Technologies Ltd, Tj Brooks Division |
| Status | ACTIVE |
| Shank Diameter | 0.312 INCHES NOMINAL IN |
| Lubrication | SOLID FILM AND CETYL ALCOHOL |
| Head Height | 0.078 INCHES NOMINAL IN |
| Fastener Length | 1.865 INCHES MINIMUM AND 1.885 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Criticality Code Justification | AGAV |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | STRAIGHT PAN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Grip Length | 1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN |
| Width Between Flats | 0.127 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.505 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| HLT50YC-10-21 | West Coast Aerospace, Inc. (USA) |
| HLT50YB-10-21 | West Coast Aerospace, Inc. (USA) |
| ST3M759C5-21 | The Boeing Company Div Defense (USA) |
| HLT50YC-10-21 PRIMARY | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT50YB-10-21 PRIMARY | Hi-Shear Corporation (USA) |
| HP4759-5-21 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| HLT50YC-10-21 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT50YB-10-21 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT50YB-10-21 PRIMARY | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT50YC-10-21 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT50YB-10-21 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT50YC-10-21 PRIMARY | Huck International, Inc (USA) |
| HLT50YC-10-21 PRIMARY | Hi-Shear Corporation (USA) |
| HLT50YB-10-21 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| HLT50YB-10-21 | 3/2 Design control — primary reference U.S. Government activity |
| HLT50YC-10-21 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-477-5598 is a Pin-Rivet, manufactured by Sps Technologies Ltd, Tj Brooks Division, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-477-5598 has 14 manufacturer part numbers on file: HLT50YC-10-21 (West Coast Aerospace, Inc.), HLT50YB-10-21 (West Coast Aerospace, Inc.), ST3M759C5-21 (The Boeing Company Div Defense), HLT50YC-10-21 (Sps Technologies Ltd, Tj Brooks Division), HLT50YB-10-21 (Hi-Shear Corporation) and 9 more.
Key specifications for HLT50YC-10-21: Shank Diameter: 0.312 INCHES NOMINAL IN; Lubrication: SOLID FILM AND CETYL ALCOHOL; Head Height: 0.078 INCHES NOMINAL IN; Fastener Length: 1.865 INCHES MINIMUM AND 1.885 INCHES MAXIMUM IN. 19 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.