The Pin-Rivet, cataloged under National Stock Number 5320-00-944-0013, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-00-944-0013 |
| Primary Part Number | GB511D4-21 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Head Height | 0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN |
| Fastener Length | 1.697 INCHES MINIMUM AND 1.717 INCHES MAXIMUM IN |
| Identification Code Color | BRONZE |
| 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 |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 1.317 INCHES MAXIMUM IN |
| Width Between Flats | 0.095 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| 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 | 0.387 INCHES MINIMUM AND 0.412 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 |
|---|---|
| HL18PB-8-21 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| GB511D4-21 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| HL18-8-21 | Hi-Shear Corporation (USA) |
| HL18-8-21 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL18PB-8-21 | Hi-Shear Corporation (USA) |
| HL18PB18-21 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HL18PB18-21 | 5/2 Secondary reference U.S. Government activity |
| 5320PL1806810 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5320-00-944-0013 is a Pin-Rivet, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-00-944-0013 has 6 manufacturer part numbers on file: HL18PB-8-21 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), GB511D4-21 (Northrop Grumman Systems Corporation), HL18-8-21 (Hi-Shear Corporation), HL18-8-21 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL18PB-8-21 (Hi-Shear Corporation) and 1 more.
Key specifications for GB511D4-21: Shank Diameter: 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Head Height: 0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN; Fastener Length: 1.697 INCHES MINIMUM AND 1.717 INCHES MAXIMUM IN; Identification Code Color: BRONZE. 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.