The Collar,pin-Rivet, cataloged under National Stock Number 5320-01-356-4441, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-356-4441 |
| Primary Part Number | HL278-5 |
| Item Name | Collar,pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Collar Inside Diameter | 0.1660 INCHES MINIMUM AND 0.1730 INCHES MAXIMUM IN |
| Collar Overall Height | 0.4470 INCHES MAXIMUM IN |
| Collar Style | THREADED (BREAK OFF) TYPE |
| Precious Material | SILVER |
| Collar Outside Diameter | 0.2830 INCHES MINIMUM AND 0.2870 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5736 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.1640 INCHES IN |
| Surface Treatment | SILVER OVERALL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| 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 |
|---|---|
| HL278-5 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL278-5 | West Coast Aerospace, Inc. (USA) |
| HL278-5 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL278-5 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL278-5 | Huck International, Inc (USA) |
| HL278-5 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| BACC30Z5 | 7/2 Vendor item drawing reference U.S. Government activity |
| HL278-5 | 3/2 Design control — primary reference U.S. Government activity |
| HL278-5 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-356-4441 is a Collar,pin-Rivet, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-356-4441 has 6 manufacturer part numbers on file: HL278-5 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL278-5 (West Coast Aerospace, Inc.), HL278-5 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL278-5 (Sps Technologies, Llc Dba PB Fasteners), HL278-5 (Huck International, Inc) and 1 more.
Key specifications for HL278-5: Surface Treatment Document and Classification: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Collar Inside Diameter: 0.1660 INCHES MINIMUM AND 0.1730 INCHES MAXIMUM IN; Collar Overall Height: 0.4470 INCHES MAXIMUM IN; Collar Style: THREADED (BREAK OFF) TYPE. 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.