The Pin-Rivet, cataloged under National Stock Number 5320-01-477-5649, 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 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-01-477-5649 |
| Primary Part Number | HLT953TB-12-18 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.374 INCHES NOMINAL IN |
| Lubrication | SOLID FILM AND CETYL ALCOHOL |
| Fastener Length | 0.910 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN |
| Criticality Code Justification | AGAV |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Grip Length | 0.375 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 | TITANIUM OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.724 INCHES MINIMUM AND 0.731 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 |
|---|---|
| ST3M760T6-18 | The Boeing Company Div Defense (USA) |
| HLT953DL-12-18 | West Coast Aerospace, Inc. (USA) |
| HLT953TB-12-18 PRIMARY | Hi-Shear Corporation (USA) |
| HLT953DL-12-18 PRIMARY | Hi-Shear Corporation (USA) |
| HLT953DL-12-18 PRIMARY | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT953TB-12-18 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT953DL-12-18 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT953TB-12-18 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT953TB-12-18 PRIMARY | Huck International, Inc (USA) |
| HLT953TB-12-18 | West Coast Aerospace, Inc. (USA) |
| HLT953TB-12-18 PRIMARY | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT953DL-12-18 PRIMARY | Huck International, Inc (USA) |
| HP4760T6-18 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| ST3M760T6-18 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HLT953DL-12-18 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| HLT953TB-12-18 | 3/2 Design control — primary reference U.S. Government activity |
| HLT953DL-12-18 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-477-5649 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-477-5649 has 15 manufacturer part numbers on file: ST3M760T6-18 (The Boeing Company Div Defense), HLT953DL-12-18 (West Coast Aerospace, Inc.), HLT953TB-12-18 (Hi-Shear Corporation), HLT953DL-12-18 (Hi-Shear Corporation), HLT953DL-12-18 (Sps Technologies Ltd, Tj Brooks Division) and 10 more.
Key specifications for HLT953TB-12-18: Shank Diameter: 0.374 INCHES NOMINAL IN; Lubrication: SOLID FILM AND CETYL ALCOHOL; Fastener Length: 0.910 INCHES MINIMUM AND 0.930 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.