The Pin-Rivet, cataloged under National Stock Number 5320-01-435-5679, 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 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-435-5679 |
| Primary Part Number | HLT451-8-17 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Material Document and Classification | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 1.0575 INCHES MINIMUM AND 1.0675 INCHES MAXIMUM IN |
| Width Between Flats | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Material | TITANIUM ALLOY UNS R54520 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.3898 INCHES MINIMUM AND 0.3948 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 |
|---|---|
| HLT451-8-17 PRIMARY | Hi-Shear Corporation (USA) |
| HLT451-8-17 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| AIC-L779V4-17 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT451-8-17 | Howmet Global Fastening Systems Inc (USA) |
| 03A074-8-17 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| HLT451-8-17 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT451-8-17 | Huck International, Inc (USA) |
| HLT451-8-17 | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HLT451-8-17 | 5/9 Secondary reference Sps Technologies Inc |
| HLT451-8-17 | 5/2 Secondary reference U.S. Government activity |
| HLT451-8-17 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-435-5679 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-435-5679 has 8 manufacturer part numbers on file: HLT451-8-17 (Hi-Shear Corporation), HLT451-8-17 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), AIC-L779V4-17 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HLT451-8-17 (Howmet Global Fastening Systems Inc), 03A074-8-17 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems) and 3 more.
Key specifications for HLT451-8-17: Shank Diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Material Document and Classification: AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Head Style: FLUSH COUNTERSUNK. 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.