The Rivet,blind, cataloged under National Stock Number 5320-01-033-8181, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Div Huck Products Division. Government technical data includes 16 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5320-01-033-8181 |
| Primary Part Number | HC3243-6-05 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck International, Inc. Div Huck Products Division |
| Status | ACTIVE |
| Shank Diameter | 0.202 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN |
| Fastener Length | 0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN |
| Expansion Device | SERRATED STEM-TYPE W |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE STEM |
| Surface Treatment Document and Classification | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE BODY |
| Material Document and Classification | QQ-A-430 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Head Style | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| Grip Length | 0.251 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Shank Style | SELF-PLUGGING MECHANICALLY LOCKED STEM |
| Surface Treatment | CADMIUM STEM |
| Surface Treatment | CHROMATE BODY |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Material | STEEL COMP 8740 STEM |
| Material | ALUMINUM ALLOY 5056 BODY |
| Head Major Diameter | 0.353 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 |
|---|---|
| CR3242-6-05 | Tecno Trade S.r.l. (ITA) |
| HC3243-6-05 PRIMARY | Huck International, Inc. Div Huck Products Division (USA) |
| CR3242-6-5 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| HR3242-6-05 | Huck International, Inc. Div Huck Products Division (USA) |
| CR3242-6-05 | Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace (USA) |
| AF3243-6-05 | Allfast Fastening Systems, Llc (USA) |
| NAS9305BNS-6-05 | Leonardo Uk Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 5320PL0828933 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| CR3242-6-5 | 5/2 Secondary reference U.S. Government activity |
| NAS9305BNS-6-05 | 3/2 Design control — primary reference U.S. Government activity |
| MIL-R-7885/7 | 5/9 Secondary reference U.S. Government activity |
| OHCP-B06-05 | 5/9 Secondary reference Huck International, Inc. Div Huck Products Division |
| OHCP-B06-05 | 5/9 Secondary reference Huck International, Inc |
| M7885/7-6-05 | 5/9 Secondary reference U.S. Government activity |
| CR3242-6-5 | 5/9 Secondary reference Klx Aerospace Solutions II SAS |
NSN 5320-01-033-8181 is a Rivet,blind, manufactured by Huck International, Inc. Div Huck Products Division, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-033-8181 has 7 manufacturer part numbers on file: CR3242-6-05 (Tecno Trade S.r.l.), HC3243-6-05 (Huck International, Inc. Div Huck Products Division), CR3242-6-5 (Fairchild Fasteners Europe - Vsd Gmbh), HR3242-6-05 (Huck International, Inc. Div Huck Products Division), CR3242-6-05 (Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace) and 2 more.
1 possible match (shared part number, not a government interchangeability claim): 5320-01-034-1884. Verify interchangeability with system specifications before substitution.
Key specifications for HC3243-6-05: Shank Diameter: 0.202 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN; Fastener Length: 0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN; Expansion Device: SERRATED STEM-TYPE W; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE 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.