The Pin-Rivet, cataloged under National Stock Number 5320-01-331-7681, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is West Coast Aerospace, Inc.. Government technical data includes 18 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-01-331-7681 |
| Primary Part Number | LS35271S12-30 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | West Coast Aerospace, Inc. |
| Status | ACTIVE |
| Shank Diameter | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL |
| Head Height | 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN |
| Fastener Length | 1.490 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Grip Length | 0.943 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Shear Strength | 108000 SINGLE POUNDS PER SQUARE INCH |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4340 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.565 INCHES MINIMUM AND 0.600 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 |
|---|---|
| LS35271S12-30 | West Coast Aerospace, Inc. (USA) |
| LS35271S12-30 | Hi-Shear Corporation (USA) |
| LS35271S12-30 | Huck International, Inc (USA) |
| LS35271S12-30 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| LS35271S12-30 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| LS35271S12-30 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| LS35271S12-30 | 3/2 Design control — primary reference U.S. Government activity |
| LS35271S12-30 | 5/2 Secondary reference U.S. Government activity |
| LS35271S12-30 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
NSN 5320-01-331-7681 is a Pin-Rivet, manufactured by West Coast Aerospace, Inc., classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-331-7681 has 6 manufacturer part numbers on file: LS35271S12-30 (West Coast Aerospace, Inc.), LS35271S12-30 (Hi-Shear Corporation), LS35271S12-30 (Huck International, Inc), LS35271S12-30 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), LS35271S12-30 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 1 more.
Key specifications for LS35271S12-30: Shank Diameter: 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL; Head Height: 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN; Fastener Length: 1.490 INCHES MAXIMUM IN. 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.