The Rivet,blind, cataloged under National Stock Number 5320-01-238-8583, 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 19 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-238-8583 |
| Primary Part Number | OSMLS100B4-2 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck International, Inc. Div Huck Products Division |
| Status | ACTIVE |
| Shank Diameter | 0.139 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Fastener Length | 0.260 INCHES NOMINAL IN |
| Identification Code Color | YELLOW |
| Expansion Device | SERRATED STEM-TYPE W |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE STEM |
| Material Document and Classification | QQ-A-430 FED SPEC SINGLE MATERIAL RESPONSE SLEEVE |
| Material Document and Classification | QQ-A-430 FED SPEC SINGLE MATERIAL RESPONSE LOCKING RING |
| Material Document and Classification | QQ-A-430 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Head Style | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| Grip Length | 0.079 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Shank Style | SELF-PLUGGING MECHANICALLY LOCKED STEM |
| Surface Treatment | ANODIZE OR CHROMATE STEM |
| Minimum Tensile Strength | 325 POUNDS PER SQUARE INCH LBS |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Shear Strength | 560 SINGLE POUNDS PER SQUARE INCH |
| Material | ALUMINUM ALLOY 5056 LOCKING RING |
| Material | ALUMINUM ALLOY 2024 STEM |
| Material | ALUMINUM ALLOY 5056 SLEEVE |
| 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 |
|---|---|
| OSMLS100B4-2 | Huck International, Inc. Div Huck Products Division (USA) |
| Reference | Meaning |
|---|---|
| OSMLS100B4-2 | 5/9 Secondary reference Huck International, Inc |
| OSMLS100B04-02 | 3/9 Design control — primary reference Huck Mfg Co |
| OSMLS100B4-2 | 5/9 Secondary reference Huck Mfg Co |
NSN 5320-01-238-8583 is a Rivet,blind, manufactured by Huck International, Inc. Div Huck Products Division, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-238-8583 has 1 manufacturer part number on file: OSMLS100B4-2 (Huck International, Inc. Div Huck Products Division).
Key specifications for OSMLS100B4-2: Shank Diameter: 0.139 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Fastener Length: 0.260 INCHES NOMINAL IN; Identification Code Color: YELLOW; Expansion Device: SERRATED STEM-TYPE W. 19 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.