The Pin-Rivet, cataloged under National Stock Number 5320-01-121-3442, 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 16 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-121-3442 |
| Primary Part Number | HL526-5-475A |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.166 INCHES MINIMUM AND 0.168 INCHES MAXIMUM IN |
| Head Height | 0.030 INCHES NOMINAL IN |
| Fastener Length | 0.525 INCHES MINIMUM AND 0.545 INCHES MAXIMUM IN |
| Criticality Code Justification | AATB |
| Material Document and Classification | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.138 INCHES IN |
| Grip Length | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Width Between Flats | 0.0635 INCHES MINIMUM AND 0.0645 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Shear Strength | 95000 SINGLE POUNDS PER SQUARE INCH |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| HL526-5-475A PRIMARY | Hi-Shear Corporation (USA) |
| HL526-5-475A | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL526-5-475A | West Coast Aerospace, Inc. (USA) |
| HL526-5-475A PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL526-5-475A | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL526-5-475A | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| 4055948 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 4055948 | 5/9 Secondary reference Am Multigraphics Div of Am Intl Inc |
| 4055948 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| HL526-5-475A | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-121-3442 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-121-3442 has 6 manufacturer part numbers on file: HL526-5-475A (Hi-Shear Corporation), HL526-5-475A (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL526-5-475A (West Coast Aerospace, Inc.), HL526-5-475A (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL526-5-475A (Sps Technologies, Llc Dba PB Fasteners) and 1 more.
Key specifications for HL526-5-475A: Shank Diameter: 0.166 INCHES MINIMUM AND 0.168 INCHES MAXIMUM IN; Head Height: 0.030 INCHES NOMINAL IN; Fastener Length: 0.525 INCHES MINIMUM AND 0.545 INCHES MAXIMUM IN; Criticality Code Justification: AATB. 16 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.