The Pin-Rivet, cataloged under National Stock Number 5320-01-725-3239, 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 18 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-725-3239 |
| Primary Part Number | ST3M761C4N12 |
| 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 |
| Head Height | 1.135 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN |
| Fastener Length | 1.135 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS2700 METHOD 1 OR 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | STRAIGHT PAN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.2500 INCHES IN |
| Grip Length | 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN |
| Width Between Flats | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.415 INCHES MINIMUM AND 0.440 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 |
|---|---|
| ST3M761C4N12 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HLT52-8-12 | West Coast Aerospace, Inc. (USA) |
| ST3M761C4N12 | Houston Precision Fasteners I Lp (USA) |
| ST3M761C4N12 PRIMARY | The Boeing Company Div Defense (USA) |
| HLT52-8-12 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT52-8-12 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HP4761-4N12 | Heartland Precision Fasteners Inc (USA) |
NSN 5320-01-725-3239 is a Pin-Rivet, manufactured by The Boeing Company Div Defense, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-725-3239 has 7 manufacturer part numbers on file: ST3M761C4N12 (Fastener Innovation Technology, Inc. Dba F I T), HLT52-8-12 (West Coast Aerospace, Inc.), ST3M761C4N12 (Houston Precision Fasteners I Lp), ST3M761C4N12 (The Boeing Company Div Defense), HLT52-8-12 (Sps Technologies, Llc Dba PB Fasteners) and 2 more.
Key specifications for ST3M761C4N12: Shank Diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL; Head Height: 1.135 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN; Fastener Length: 1.135 INCHES MINIMUM AND 1.155 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.