The Pin-Rivet, cataloged under National Stock Number 5320-01-727-6725, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-727-6725 |
| Primary Part Number | 3M1261C8A4 |
| 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 | 0.078 INCHES MAXIMUM IN |
| Fastener Length | 0.576 INCHES MINIMUM AND 0.586 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 | CROWN COUNTERSUNK LESS THAN 135 DEGREES |
| Grip Length | 0.250 INCHES NOMINAL IN |
| Shank Style | STUMP |
| Surface Treatment | PASSIVATE OVERALL |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Shear Strength | 125000 SINGLE POUNDS PER SQUARE INCH |
| Material | STEEL COMP XM-13 OVERALL |
| Head Major Diameter | 0.3856 INCHES MINIMUM AND 0.3989 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 |
|---|---|
| 93783-8A4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3M1261C8A4 PRIMARY | The Boeing Company Div Defense (USA) |
| VLB257-8A4 | Howmet Global Fastening Systems Inc (USA) |
| AIC3059S8A4 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M1261C8A4 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| VLB257-8A4 | Huck International, Inc (USA) |
| 3M1261C8A4 | Houston Precision Fasteners I Lp (USA) |
| Reference | Meaning |
|---|---|
| 3M1261 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 5320-01-727-6725 is a Pin-Rivet, manufactured by The Boeing Company Div Defense, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-727-6725 has 7 manufacturer part numbers on file: 93783-8A4 (Sps Technologies, Llc Dba PB Fasteners), 3M1261C8A4 (The Boeing Company Div Defense), VLB257-8A4 (Howmet Global Fastening Systems Inc), AIC3059S8A4 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 3M1261C8A4 (Fastener Innovation Technology, Inc. Dba F I T) and 2 more.
4 possible matches (shared part number, not a government interchangeability claim): 5320-01-727-6726, 5320-01-727-6727, 5320-01-727-6728. Verify interchangeability with system specifications before substitution.
Key specifications for 3M1261C8A4: Shank Diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL; Head Height: 0.078 INCHES MAXIMUM IN; Fastener Length: 0.576 INCHES MINIMUM AND 0.586 INCHES MAXIMUM IN. 14 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.