The Pin-Rivet, cataloged under National Stock Number 5320-01-676-4161, 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 18 specifications, cited from the U.S. Government catalog. The record lists 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-01-676-4161 |
| Primary Part Number | 4448S8-14PR |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Shank Diameter | 0.2645 INCHES MINIMUM AND 0.2661 INCHES MAXIMUM IN |
| Lubrication | DRY FILM AND CETYL ALCOHOL |
| Fastener Length | 1.310 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| Head Style | FLUSH COUNTERSUNK |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 0.875 INCHES NOMINAL IN |
| Width Between Flats | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 4140 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.428 INCHES MINIMUM AND 0.478 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 |
|---|---|
| HLT923-8-14 | Howmet Global Fastening Systems Inc (USA) |
| HLT923-8-14 | Huck International, Inc (USA) |
| 4448-8-14PR | Abounding Security Inc Div of Maa Corp (USA) |
| HLT923-8-14 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| C9570-8-14PX | Howmet Global Fastening Systems Inc (USA) |
| C9570-8-14PX | Sps Technologies, Llc Dba PB Fasteners (USA) |
| C9570-8-14PX | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| C9570-8-14PX | Huck International, Inc (USA) |
| C9570-8-14PX | Abounding Security Inc Div of Maa Corp (USA) |
| AIC-L-807-8-14PR | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 4448S8-14PR PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| C9570-8-14PX | 5/2 Secondary reference U.S. Government activity |
| HLT923-8-14 | 5/2 Secondary reference U.S. Government activity |
| C9570-8-14PX | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5320-01-676-4161 is a Pin-Rivet, manufactured by Huck International, Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-676-4161 has 11 manufacturer part numbers on file: HLT923-8-14 (Howmet Global Fastening Systems Inc), HLT923-8-14 (Huck International, Inc), 4448-8-14PR (Abounding Security Inc Div of Maa Corp), HLT923-8-14 (Sps Technologies, Llc Dba PB Fasteners), C9570-8-14PX (Howmet Global Fastening Systems Inc) and 6 more.
Key specifications for 4448S8-14PR: Shank Diameter: 0.2645 INCHES MINIMUM AND 0.2661 INCHES MAXIMUM IN; Lubrication: DRY FILM AND CETYL ALCOHOL; Fastener Length: 1.310 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.