The Pin-Rivet, cataloged under National Stock Number 5320-01-481-7121, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 16 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-481-7121 |
| Primary Part Number | HLT633YB-14-10 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Shank Diameter | 0.436 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Fastener Length | 0.630 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN |
| Criticality Code Justification | AGAV |
| Head Style | FLUSH COUNTERSUNK |
| Nominal Thread Size | 0.437 INCHES IN |
| Grip Length | 0.625 INCHES NOMINAL IN |
| Width Between Flats | 0.189 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.881 INCHES MINIMUM AND 0.888 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 | Y |
| Part Number | Manufacturer |
|---|---|
| HLT633YC-14-10 | West Coast Aerospace, Inc. (USA) |
| HLT633YB-14-10 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M760D7-10 PRIMARY | The Boeing Company Div Defense (USA) |
| HLT633YC-14-10 | Hi-Shear Corporation (USA) |
| HLT633YB-14-10 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HP4760D7-10 | Heartland Precision Fasteners Inc (USA) |
| ST3M760D7-10 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HLT633YC-14-10 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT633YC-14-10 PRIMARY | Huck International, Inc (USA) |
| HLT633YB-14-10 PRIMARY | Hi-Shear Corporation (USA) |
| HLT633YC-14-10 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT633YB-14-10 PRIMARY | Huck International, Inc (USA) |
| HLT633YB-14-10 PRIMARY | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT633YC-14-10 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT633YC-14-10 PRIMARY | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT633YB-14-10 | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HLT633YB-14-10 | 3/2 Design control — primary reference U.S. Government activity |
| HLT633YC-14-10 | 3/2 Design control — primary reference U.S. Government activity |
| HLT633YB-14-10 | 3/2 Design control — primary reference U.S. Government activity |
| HLT633YC-14-10 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-481-7121 is a Pin-Rivet, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-481-7121 has 16 manufacturer part numbers on file: HLT633YC-14-10 (West Coast Aerospace, Inc.), HLT633YB-14-10 (Sps Technologies, Llc Dba PB Fasteners), ST3M760D7-10 (The Boeing Company Div Defense), HLT633YC-14-10 (Hi-Shear Corporation), HLT633YB-14-10 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 11 more.
Key specifications for HLT633YB-14-10: Shank Diameter: 0.436 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN; Fastener Length: 0.630 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN; Criticality Code Justification: AGAV; Head Style: FLUSH COUNTERSUNK. 14 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.