The Rivet,blind, cataloged under National Stock Number 5320-01-504-1661, 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 12 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-504-1661 |
| Primary Part Number | 1844M66P06 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace |
| Status | ACTIVE |
| Shank Diameter | 0.127 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN |
| Head Height | 0.054 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Fastener Length | 0.379 INCHES NOMINAL IN |
| Expansion Device | SERRATED STEM-TYPE W |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLAT FILLISTER W/PROTRUDING STUD |
| Grip Length | 0.219 INCHES MINIMUM AND 0.282 INCHES MAXIMUM IN |
| Shank Style | SELF-PLUGGING MECHANICALLY LOCKED STEM |
| Surface Treatment | PASSIVATE OVERALL |
| Material | IRON ALLOY 660 OVERALL |
| Head Major Diameter | 0.197 INCHES MINIMUM AND 0.215 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 |
|---|---|
| CR7621S-04-04 | Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace (USA) |
| 1844M66P06 PRIMARY | Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace (USA) |
NSN 5320-01-504-1661 is a Rivet,blind, manufactured by Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-504-1661 has 2 manufacturer part numbers on file: CR7621S-04-04 (Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace), 1844M66P06 (Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace).
1 possible match (shared part number, not a government interchangeability claim): 5320-01-504-7513. Verify interchangeability with system specifications before substitution.
Key specifications for 1844M66P06: Shank Diameter: 0.127 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN; Head Height: 0.054 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN; Fastener Length: 0.379 INCHES NOMINAL IN; Expansion Device: SERRATED STEM-TYPE W. 12 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.