The Pin-Rivet, cataloged under National Stock Number 5320-01-477-5644, 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 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-01-477-5644 |
| Primary Part Number | HLT953TB-8-16 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Shank Diameter | 0.249 INCHES NOMINAL IN |
| Lubrication | SOLID FILM AND CETYL ALCOHOL |
| Fastener Length | 0.635 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN |
| Criticality Code Justification | AGAV |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 0.250 INCHES NOMINAL IN |
| Width Between Flats | 0.094 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | TITANIUM OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.470 INCHES MINIMUM AND 0.477 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 |
|---|---|
| HLT953TB-8-16 PRIMARY | Huck International, Inc (USA) |
| HLT953TB-8-16 | West Coast Aerospace, Inc. (USA) |
| HLT953TB-8-16 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HP4760T4-16 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| ST3M760T4-16 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HLT953DL-8-16 | West Coast Aerospace, Inc. (USA) |
| HLT953DL-8-16 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT953DL-8-16 PRIMARY | Huck International, Inc (USA) |
| HLT953TB-8-16 PRIMARY | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT953DL-8-16 PRIMARY | Hi-Shear Corporation (USA) |
| HLT953TB-8-16 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT953TB-8-16 PRIMARY | Hi-Shear Corporation (USA) |
| HLT953DL-8-16 PRIMARY | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| ST3M760T4-16 | The Boeing Company Div Defense (USA) |
| HLT953DL-8-16 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| HLT953DL-8-16 | 3/2 Design control — primary reference U.S. Government activity |
| HLT953TB-8-16 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-477-5644 is a Pin-Rivet, manufactured by Huck International, Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-477-5644 has 15 manufacturer part numbers on file: HLT953TB-8-16 (Huck International, Inc), HLT953TB-8-16 (West Coast Aerospace, Inc.), HLT953TB-8-16 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HP4760T4-16 (Heartland Precision Fasteners Inc), ST3M760T4-16 (Fastener Innovation Technology, Inc. Dba F I T) and 10 more.
Key specifications for HLT953TB-8-16: Shank Diameter: 0.249 INCHES NOMINAL IN; Lubrication: SOLID FILM AND CETYL ALCOHOL; Fastener Length: 0.635 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN; Criticality Code Justification: AGAV. 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.