The Pin-Rivet, cataloged under National Stock Number 5320-01-458-4170, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-458-4170 |
| Primary Part Number | HST529AP-8-18 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Shank Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Fastener Length | 1.510 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN |
| Head Style | CROWN COUTERSUNK GREATER THAN 135 DEGREES |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 1.125 INCHES NOMINAL IN |
| Width Between Flats | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | ALUMINUM OVERALL |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Material | TITANIUM ALLOY UNS R56400 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.4682 INCHES MINIMUM AND 0.4732 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 |
|---|---|
| HST529AP-8-18 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HK0097C8-18 PRIMARY | Huck International, Inc (USA) |
| HST529AP-8-18 PRIMARY | Hi-Shear Corporation (USA) |
| HST529AP-8-18 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HST529AP-8-18 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| WC197A-8-18 PRIMARY | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| VS3427VAP8-18 | 3/2 Design control — primary reference U.S. Government activity |
| HST529AP-8-18 | 5/9 Secondary reference Sps Technologies Inc |
| 3D0097C8-18 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-458-4170 is a Pin-Rivet, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-458-4170 has 6 manufacturer part numbers on file: HST529AP-8-18 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HK0097C8-18 (Huck International, Inc), HST529AP-8-18 (Hi-Shear Corporation), HST529AP-8-18 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HST529AP-8-18 (Sps Technologies, Llc Dba PB Fasteners) and 1 more.
Key specifications for HST529AP-8-18: Shank Diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN; Fastener Length: 1.510 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN; Head Style: CROWN COUTERSUNK GREATER THAN 135 DEGREES; Thread Direction: RIGHT-HAND. 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.