The Pin-Rivet, cataloged under National Stock Number 5320-01-481-7267, 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 14 specifications, cited from the U.S. Government catalog. The record lists 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-01-481-7267 |
| Primary Part Number | HLT633YC-12-8 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Shank Diameter | 0.374 INCHES NOMINAL IN |
| Fastener Length | 0.540 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN |
| Criticality Code Justification | AGAV |
| Head Style | FLUSH COUNTERSUNK |
| Nominal Thread Size | 0.375 INCHES IN |
| Grip Length | 0.500 INCHES NOMINAL IN |
| Width Between Flats | 0.158 INCHES MINIMUM AND 0.161 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 CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.755 INCHES MINIMUM AND 0.760 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 |
|---|---|
| HLT633YB-12-8 | West Coast Aerospace, Inc. (USA) |
| HLT633YC-12-8 | West Coast Aerospace, Inc. (USA) |
| HLT633YC-12-8 PRIMARY | Huck International, Inc (USA) |
| HLT633YB-12-8 PRIMARY | Huck International, Inc (USA) |
| ST3M760D6-8 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HLT633YC-12-8 PRIMARY | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT633YC-12-8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT633YB-12-8 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT633YB-12-8 PRIMARY | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT633YC-12-8 PRIMARY | Hi-Shear Corporation (USA) |
| HLT633YB-12-8 PRIMARY | Hi-Shear Corporation (USA) |
| HLT633YC-12-8 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT633YB-12-8 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HP4760D6-8 | Heartland Precision Fasteners Inc (USA) |
| ST3M760D6-8 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| HLT633YB-12-8 | 3/2 Design control — primary reference U.S. Government activity |
| HLT633YC-12-8 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-481-7267 is a Pin-Rivet, manufactured by Huck International, Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-481-7267 has 15 manufacturer part numbers on file: HLT633YB-12-8 (West Coast Aerospace, Inc.), HLT633YC-12-8 (West Coast Aerospace, Inc.), HLT633YC-12-8 (Huck International, Inc), HLT633YB-12-8 (Huck International, Inc), ST3M760D6-8 (Fastener Innovation Technology, Inc. Dba F I T) and 10 more.
Key specifications for HLT633YC-12-8: Shank Diameter: 0.374 INCHES NOMINAL IN; Fastener Length: 0.540 INCHES MINIMUM AND 0.550 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.