The Collar,pin-Rivet, cataloged under National Stock Number 5320-01-729-7697, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-729-7697 |
| Primary Part Number | HST78-6 |
| Item Name | Collar,pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Surface Treatment Document and Classification | AMS2410 NATIONAL STD SINGLE TREATMENT RESPONSE COLLAR |
| Collar Inside Diameter | 0.208 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN |
| Collar Overall Height | 0.385 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN |
| Collar Style | THREADED (BREAK OFF) TYPE |
| Collar Outside Diameter | 0.303 INCHES MINIMUM AND 0.307 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5731 NATIONAL STD SINGLE MATERIAL RESPONSE COLLAR |
| Nominal Thread Size | 0.1666 INCHES IN |
| Surface Treatment | SILVER COLLAR |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING WASHER |
| Material | IRON ALLOY COLLAR |
| 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 |
|---|---|
| HST78-6 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HST78 | D/9 Drawing number reference only Hi-Shear Corporation |
NSN 5320-01-729-7697 is a Collar,pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-729-7697 has 1 manufacturer part number on file: HST78-6 (Hi-Shear Corporation).
Key specifications for HST78-6: Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Surface Treatment Document and Classification: AMS2410 NATIONAL STD SINGLE TREATMENT RESPONSE COLLAR; Collar Inside Diameter: 0.208 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN; Collar Overall Height: 0.385 INCHES MINIMUM AND 0.406 INCHES MAXIMUM 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.