The Rivet,blind, cataloged under National Stock Number 5320-01-221-6871, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-221-6871 |
| Primary Part Number | CR3522P4-4 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace |
| Status | ACTIVE |
| Shank Diameter | 0.125 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN |
| Head Height | 0.041 INCHES NOMINAL IN |
| Fastener Length | 0.319 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN |
| Expansion Device | BREAK STEM |
| Surface Treatment Document and Classification | C-123 MFR REF SINGLE TREATMENT RESPONSE SLEEVE |
| Material Document and Classification | AMS 5731 ASSN STD 3RD MATERIAL RESPONSE LOCKING RING |
| Material Document and Classification | AMS 5657 ASSN STD 2ND MATERIAL RESPONSE STEM |
| Material Document and Classification | QQ-N-281 FED SPEC 1ST MATERIAL RESPONSE SLEEVE |
| Head Style | UNIVERSAL |
| Grip Length | 0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Shank Style | SELF-PLUGGING MECHANICALLY LOCKED STEM |
| Surface Treatment | ALUMINUM SLEEVE |
| Material | NICKEL ALLOY R-405 SLEEVE |
| Material | STEEL COMP 632 STEM |
| Material | IRON ALLOY 660 LOCKING RING |
| Head Major Diameter | 0.221 INCHES MINIMUM AND 0.229 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 |
|---|---|
| CR3522P4-4 PRIMARY | Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace (USA) |
| CR3522P4-4 | Boeing Distribution Services SAS (FRA) |
| Reference | Meaning |
|---|---|
| 10151223 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| CR3522P4-4 | 5/9 Secondary reference Klx Aerospace Solutions II SAS |
NSN 5320-01-221-6871 is a Rivet,blind, manufactured by Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-221-6871 has 2 manufacturer part numbers on file: CR3522P4-4 (Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace), CR3522P4-4 (Boeing Distribution Services SAS).
Key specifications for CR3522P4-4: Shank Diameter: 0.125 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN; Head Height: 0.041 INCHES NOMINAL IN; Fastener Length: 0.319 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN; Expansion Device: BREAK STEM. 16 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.