The Collar,pin-Rivet, cataloged under National Stock Number 5320-01-443-1747, 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 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-443-1747 |
| Primary Part Number | HST 1671 TAWT-8 |
| Item Name | Collar,pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Lubrication | SOLID FILM |
| Collar Inside Diameter | 0.272 INCHES MINIMUM AND 0.276 INCHES MAXIMUM IN |
| Collar Overall Height | 0.570 INCHES NOMINAL IN |
| Collar Style | THREADED (BREAK OFF) TYPE |
| Collar Outside Diameter | 0.550 INCHES NOMINAL IN |
| Material Document and Classification | AMS 4901 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4902 ASSN STD SINGLE MATERIAL RESPONSE WASHER |
| Material Document and Classification | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Nominal Thread Size | 0.250 INCHES IN |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | TITANIUM ALLOY UNS R56400 BODY |
| Material | TITANIUM ALLOY WASHER |
| 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 |
|---|---|
| HST 1671 TAWT-8 PRIMARY | Hi-Shear Corporation (USA) |
| HST 1671 TAWT-8 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HST 1671 TAWT-8 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 4097T39P01 | 5/2 Secondary reference U.S. Government activity |
| 4097T39P02 | 5/2 Secondary reference U.S. Government activity |
| 4097T39 | 1/2 Source control — Government-approved source U.S. Government activity |
| 4097T39P03 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-443-1747 is a Collar,pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-443-1747 has 3 manufacturer part numbers on file: HST 1671 TAWT-8 (Hi-Shear Corporation), HST 1671 TAWT-8 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HST 1671 TAWT-8 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for HST 1671 TAWT-8: Lubrication: SOLID FILM; Collar Inside Diameter: 0.272 INCHES MINIMUM AND 0.276 INCHES MAXIMUM IN; Collar Overall Height: 0.570 INCHES NOMINAL IN; Collar Style: THREADED (BREAK OFF) TYPE. 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.