The Collar,pin-Rivet, cataloged under National Stock Number 5320-01-351-5641, 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 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-351-5641 |
| Primary Part Number | HL297DU-12A |
| Item Name | Collar,pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Lubrication | SOLID FILM |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Collar Inside Diameter | 0.4900 INCHES NOMINAL IN |
| Collar Overall Height | 0.7300 INCHES NOMINAL IN |
| Collar Style | THREADED (BREAK OFF) TYPE |
| Collar Outside Diameter | 0.6750 INCHES MINIMUM AND 0.6850 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5736 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.3750 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| HL297DU-12A | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL297DU-12A PRIMARY | Hi-Shear Corporation (USA) |
| HL297DU-12A PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| HL297-12TFA | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HL297-12TFA | 5/9 Secondary reference Hi-Shear Corporation |
| HL297DU-12A | 5/9 Secondary reference U.S. Government activity |
| 03A196-12L | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 03A196-12L | 5/9 Secondary reference Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| HL297-12TFA | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Voi-Shan Products |
| HL297-12DUA | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Voi-Shan Products |
NSN 5320-01-351-5641 is a Collar,pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-351-5641 has 3 manufacturer part numbers on file: HL297DU-12A (Sps Technologies, Llc Dba PB Fasteners), HL297DU-12A (Hi-Shear Corporation), HL297DU-12A (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc).
Key specifications for HL297DU-12A: Lubrication: SOLID FILM; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Collar Inside Diameter: 0.4900 INCHES NOMINAL IN; Collar Overall Height: 0.7300 INCHES NOMINAL IN. 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.