The Pin-Rivet, cataloged under National Stock Number 5320-01-726-8101, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-726-8101 |
| Primary Part Number | ST3M758D08N4 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Shank Diameter | 0.1630 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL |
| Head Height | 0.0388 INCHES MINIMUM AND 0.0408 INCHES MAXIMUM IN |
| Fastener Length | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS2700 METHOD 1 OR 2 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS5629 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.1640 INCHES IN |
| Grip Length | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Width Between Flats | 0.0791 INCHES MINIMUM AND 0.0806 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | PASSIVATE OVERALL |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNJC |
| Head Major Diameter | 0.2564 INCHES MINIMUM AND 0.2612 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 |
|---|---|
| ST3M758D08N4 | Houston Precision Fasteners I Lp (USA) |
| HLT631-5-4 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT631-5-4 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M758D08N4 PRIMARY | The Boeing Company Div Defense (USA) |
| HP4758D08N4 | Heartland Precision Fasteners Inc (USA) |
| HLT631-5-4 | Hi-Shear Corporation (USA) |
| ST3M758D08N4 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HLT631-5-4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT631-5-4 | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HLT631-5-4 | 5/2 Secondary reference U.S. Government activity |
| ST3M758 | D/9 Drawing number reference only The Boeing Company Div Defense |
| HLT631-5-4 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-726-8101 is a Pin-Rivet, manufactured by The Boeing Company Div Defense, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-726-8101 has 9 manufacturer part numbers on file: ST3M758D08N4 (Houston Precision Fasteners I Lp), HLT631-5-4 (Sps Technologies Ltd, Tj Brooks Division), HLT631-5-4 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), ST3M758D08N4 (The Boeing Company Div Defense), HP4758D08N4 (Heartland Precision Fasteners Inc) and 4 more.
Key specifications for ST3M758D08N4: Shank Diameter: 0.1630 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL; Head Height: 0.0388 INCHES MINIMUM AND 0.0408 INCHES MAXIMUM IN; Fastener Length: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN. 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.