The Pin-Rivet, cataloged under National Stock Number 5320-00-291-5447, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-00-291-5447 |
| Primary Part Number | ST3M415C4-4 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Shank Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL |
| Fastener Length | 0.635 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | 258,FSCM 73197 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 0.255 INCHES MAXIMUM IN |
| Width Between Flats | 0.095 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | PASSIVATE OVERALL |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Shear Strength | 95000 SINGLE POUNDS PER SQUARE INCH |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.390 INCHES MINIMUM AND 0.395 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 |
|---|---|
| HL41-8-4 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HL41-8-4 | Hi-Shear Corporation (USA) |
| HL41-8-4 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL41-8-4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL41-8-4 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30FN8A4U | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL41-8-4 | West Coast Aerospace, Inc. (USA) |
| BACB30FN8A4U | Huck International, Inc (USA) |
| ST3M415C4-4 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| ST25D60-80-4 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corp |
| HL41-8-4 | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| HL41-8-4 | 5/2 Secondary reference U.S. Government activity |
| AICL41-8-4 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| HL41-8-4 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| HL41-8-4 | 5/9 Secondary reference U.S. Government activity |
| MA4415-4-4 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| BACB30FN8A4U | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5320-00-291-5447 is a Pin-Rivet, manufactured by The Boeing Company Div Defense, classified under FSC 5320, Rivets. Status: active.
NSN 5320-00-291-5447 has 9 manufacturer part numbers on file: HL41-8-4 (Sps Technologies Ltd, Tj Brooks Division), HL41-8-4 (Hi-Shear Corporation), HL41-8-4 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL41-8-4 (Sps Technologies, Llc Dba PB Fasteners), HL41-8-4 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 4 more.
Key specifications for ST3M415C4-4: Shank Diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL; Fastener Length: 0.635 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN; Surface Treatment Document and Classification: 258,FSCM 73197 MFR REF SINGLE TREATMENT RESPONSE OVERALL. 19 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.