The Pin-Rivet, cataloged under National Stock Number 5320-01-021-2745, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5320-01-021-2745 |
| Primary Part Number | HL557-10-29 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.3266 INCHES MINIMUM AND 0.3276 INCHES MAXIMUM IN |
| Fastener Length | 2.342 INCHES MINIMUM AND 2.362 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Grip Length | 1.812 INCHES NOMINAL IN |
| Width Between Flats | 0.127 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.469 INCHES MINIMUM AND 0.474 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 | X |
| Part Number | Manufacturer |
|---|---|
| HL557-10-29 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| 3M280A5-29 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5320-01-021-2745 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-021-2745 has 1 manufacturer part number on file: HL557-10-29 (Hi-Shear Corporation).
Key specifications for HL557-10-29: Shank Diameter: 0.3266 INCHES MINIMUM AND 0.3276 INCHES MAXIMUM IN; Fastener Length: 2.342 INCHES MINIMUM AND 2.362 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Head Style: FLUSH COUNTERSUNK. 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.