The Pin-Rivet, cataloged under National Stock Number 5320-01-533-4854, 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 13 specifications, cited from the U.S. Government catalog. The record lists 18 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-01-533-4854 |
| Primary Part Number | HLT631YB-8-7 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Shank Diameter | 0.241 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN |
| Head Height | 0.058 INCHES MINIMUM AND 0.061 INCHES MAXIMUM IN |
| Head Style | COOPER'S |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 3.160 INCHES NOMINAL IN |
| Shank Style | STUMP |
| Countersink Angle | 100.0 RADIANS NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.358 INCHES MINIMUM AND 0.365 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-8-7 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M758D4-7 | The Boeing Company Div Defense (USA) |
| HLT631YB-8-7 PRIMARY | Hi-Shear Corporation (USA) |
| HLT631YB-8-7 PRIMARY | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT631YC-8-7 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M758D4-7 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT631YC-8-7 PRIMARY | West Coast Aerospace, Inc. (USA) |
| HLT631YC-8-7 PRIMARY | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT631YB-8-7 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT631YB-8-7 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT631YC-8-7 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT631YC-8-7 PRIMARY | Huck International, Inc (USA) |
| HLT631YB-8-7 PRIMARY | Huck International, Inc (USA) |
| HP4758D4-7 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| AIC-L-771-8-7 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT631YC-8-7 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT631YC-8-7 PRIMARY | Hi-Shear Corporation (USA) |
| HLT631YB-8-7 PRIMARY | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HLT631YC-8-7 | 5/9 Secondary reference Sps Technologies Inc |
| HLT631YB-8-7 | 3/2 Design control — primary reference U.S. Government activity |
| HLT631YB-8-7 | 5/9 Secondary reference Sps Technologies Inc |
| HLT631YC-8-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-533-4854 is a Pin-Rivet, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-533-4854 has 18 manufacturer part numbers on file: HLT631YB-8-7 (Sps Technologies, Llc Dba PB Fasteners), ST3M758D4-7 (The Boeing Company Div Defense), HLT631YB-8-7 (Hi-Shear Corporation), HLT631YB-8-7 (Sps Technologies Ltd, Tj Brooks Division), HLT631YC-8-7 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 13 more.
Key specifications for HLT631YB-8-7: Shank Diameter: 0.241 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN; Head Height: 0.058 INCHES MINIMUM AND 0.061 INCHES MAXIMUM IN; Head Style: COOPER'S; Thread Direction: RIGHT-HAND. 13 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.