The Pin-Rivet, cataloged under National Stock Number 5320-00-855-1423, 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 18 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-00-855-1423 |
| Primary Part Number | HL551-12-17 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Fastener Length | 1.591 INCHES MINIMUM AND 1.626 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Grip Length | 1.016 INCHES MAXIMUM IN |
| Width Between Flats | 0.158 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Shear Strength | 95000 SINGLE POUNDS PER SQUARE INCH |
| Thread Class | 3A A |
| Material | STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 4130 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.555 INCHES MINIMUM AND 0.561 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 |
|---|---|
| HL551-12-17 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL551-12-17 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| HL551-12-17 PRIMARY | Hi-Shear Corporation (USA) |
| HL551-12-17 | Satair A/s (DNK) |
| HL551-12-17 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 3M249A6-17 | The Boeing Company Div Defense (USA) |
| 65844-6-17 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HL551-12-17 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| HL5551-12-17 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HL551-12-17 | 5/2 Secondary reference U.S. Government activity |
| HL551-12-17 | 5/9 Secondary reference U.S. Government activity |
| HL5551-12-17 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-00-855-1423 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-00-855-1423 has 7 manufacturer part numbers on file: HL551-12-17 (Sps Technologies, Llc Dba PB Fasteners), HL551-12-17 (Fairchild Fasteners Europe - Vsd Gmbh), HL551-12-17 (Hi-Shear Corporation), HL551-12-17 (Satair A/s), HL551-12-17 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 2 more.
Key specifications for HL551-12-17: Shank Diameter: 0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Fastener Length: 1.591 INCHES MINIMUM AND 1.626 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 3RD MATERIAL RESPONSE OVERALL. 18 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.