The Pin-Rivet, cataloged under National Stock Number 5320-01-421-0308, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5320-01-421-0308 |
| Primary Part Number | HLT311TA-8-8 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Shank Diameter | 0.249 INCHES NOMINAL IN |
| Head Height | 0.068 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN |
| Fastener Length | 0.895 INCHES MAXIMUM IN |
| Head Style | FLAT COUNTERSUNK UNDERCUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 0.500 INCHES NOMINAL IN |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.389 INCHES MINIMUM AND 0.394 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 |
|---|---|
| HLT311TA-8-8 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| HLT311TA-8-8 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5320-01-421-0308 is a Pin-Rivet, manufactured by Huck International, Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-421-0308 has 1 manufacturer part number on file: HLT311TA-8-8 (Huck International, Inc).
Key specifications for HLT311TA-8-8: Shank Diameter: 0.249 INCHES NOMINAL IN; Head Height: 0.068 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN; Fastener Length: 0.895 INCHES MAXIMUM IN; Head Style: FLAT COUNTERSUNK UNDERCUT. 13 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.