The Pin-Rivet, cataloged under National Stock Number 5320-01-591-9984, 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 18 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-01-591-9984 |
| Primary Part Number | HLT631YB-6-16 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Shank Diameter | 0.189 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Lubrication | SOLID FILM OR DRY FILM AND CETYL ALCOHOL |
| Fastener Length | 1.325 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AMS2700 METHOD 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Grip Length | 1.000 INCHES NOMINAL IN |
| Width Between Flats | 0.104 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | PASSIVATE OVERALL |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.265 INCHES MINIMUM AND 0.272 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 | X |
| Part Number | Manufacturer |
|---|---|
| HLT631YB-6-16 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT631YB-6-16 | Hi-Shear Corporation (USA) |
| HLT631YB-6-16 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT631YB-6-16 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| ST3M758D3-16 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HLT631YB-6-16 | 3/9 Design control — primary reference Sps Technologies Inc |
NSN 5320-01-591-9984 is a Pin-Rivet, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-591-9984 has 4 manufacturer part numbers on file: HLT631YB-6-16 (Sps Technologies, Llc Dba PB Fasteners), HLT631YB-6-16 (Hi-Shear Corporation), HLT631YB-6-16 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HLT631YB-6-16 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company).
Key specifications for HLT631YB-6-16: Shank Diameter: 0.189 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Lubrication: SOLID FILM OR DRY FILM AND CETYL ALCOHOL; Fastener Length: 1.325 INCHES NOMINAL IN; Surface Treatment Document and Classification: AMS2700 METHOD 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 18 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.