The Pin-Rivet, cataloged under National Stock Number 5320-00-438-5574, 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 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-00-438-5574 |
| Primary Part Number | TL400-6-25 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-5000 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Size | 0.190 INCHES IN |
| Thread Class | 3A A |
| Material | STEEL COMP E4340 OR STEEL COMP 4340 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.372 INCHES MINIMUM AND 0.382 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 |
|---|---|
| TL400-6-25 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| TL400-6-25 | 5/9 Secondary reference U.S. Government activity |
| STSAH004A06AB25 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5320-00-438-5574 is a Pin-Rivet, manufactured by Huck International, Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-00-438-5574 has 1 manufacturer part number on file: TL400-6-25 (Huck International, Inc).
Key specifications for TL400-6-25: Head Height: 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN; Material Document and Classification: MIL-S-5000 MIL SPEC ALL MATERIAL RESPONSES OVERALL; Nominal Thread Size: 0.190 INCHES IN; Thread Class: 3A A. 7 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.