The Rivet,blind, cataloged under National Stock Number 5320-01-662-9137, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Leonardo Spa Helicopters Division - Production Site. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-662-9137 |
| Primary Part Number | NAS1721H5-2A |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Leonardo Spa Helicopters Division - Production Site |
| Status | ACTIVE |
| Shank Diameter | 0.156 INCHES NOMINAL IN |
| Head Height | 0.041 INCHES NOMINAL IN |
| Fastener Length | 0.620 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MILA8625 MIL SPEC SINGLE TREATMENT RESPONSE SLEEVE |
| Material Document and Classification | BSEN2100 ASSN STD SINGLE MATERIAL RESPONSE SLEEVE |
| Head Style | COOPER'S (INCLUDED ANGLE - 135 DEG AND OVER) |
| Specification/standard Data | 80205-ANSI-Y14-5M-1982 NATIONAL STD/SPEC |
| Grip Length | 0.399 INCHES NOMINAL IN |
| Head Minor Diameter | 0.208 INCHES NOMINAL IN |
| Shank Style | DRIVE PIN |
| Countersink Height | 0.041 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE SLEEVE |
| Countersink Angle | 98.5 DEGREES MINIMUM AND 101.5 DEGREES MAXIMUM |
| Material | ALUMINUM ALLOY SLEEVE |
| Head Major Diameter | 0.225 INCHES NOMINAL 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 |
|---|---|
| NAS1721H5-2A | Leonardo Spa Helicopters Division - Production Site (ITA) |
| Reference | Meaning |
|---|---|
| NAS1721H5-2A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-662-9137 is a Rivet,blind, manufactured by Leonardo Spa Helicopters Division - Production Site, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-662-9137 has 1 manufacturer part number on file: NAS1721H5-2A (Leonardo Spa Helicopters Division - Production Site).
Key specifications for NAS1721H5-2A: Shank Diameter: 0.156 INCHES NOMINAL IN; Head Height: 0.041 INCHES NOMINAL IN; Fastener Length: 0.620 INCHES NOMINAL IN; Surface Treatment Document and Classification: MILA8625 MIL SPEC SINGLE TREATMENT RESPONSE SLEEVE. 15 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.