The Collar,pin-Rivet, cataloged under National Stock Number 5320-00-161-2052, 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 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-00-161-2052 |
| Primary Part Number | HL73PB18 |
| 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 | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Collar Inside Diameter | 0.570 INCHES MINIMUM AND 0.582 INCHES MAXIMUM IN |
| Collar Overall Height | 1.009 INCHES MINIMUM AND 1.029 INCHES MAXIMUM IN |
| Collar Style | THREADED (BREAK OFF) TYPE |
| Collar Outside Diameter | 0.905 INCHES MINIMUM AND 0.915 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.562 INCHES IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 630 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 |
|---|---|
| HL73PB18 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL73PB18 PRIMARY | Hi-Shear Corporation (USA) |
| HL73PB18 | West Coast Aerospace, Inc. (USA) |
| HL73PB18 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HL73PB18 | 5/2 Secondary reference U.S. Government activity |
| HL73PB18 | 5/9 Secondary reference Sps Technologies Inc |
NSN 5320-00-161-2052 is a Collar,pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-00-161-2052 has 4 manufacturer part numbers on file: HL73PB18 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL73PB18 (Hi-Shear Corporation), HL73PB18 (West Coast Aerospace, Inc.), HL73PB18 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for HL73PB18: Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Collar Inside Diameter: 0.570 INCHES MINIMUM AND 0.582 INCHES MAXIMUM IN; Collar Overall Height: 1.009 INCHES MINIMUM AND 1.029 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.