The Nut,plain,blind Rivet, cataloged under National Stock Number 5310-01-194-0663, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Urania Engineering Co., Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-194-0663 |
| Primary Part Number | CB03118S256 |
| Item Name | Nut,plain,blind Rivet |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Urania Engineering Co., Inc. |
| Status | ACTIVE |
| Nut Length | 1.297 INCHES MINIMUM AND 1.327 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Head Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Shank End Type | CLOSED |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Nut Diameter | 0.409 INCHES MINIMUM AND 0.413 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Nut Style | BLIND RIVET W/SMOOTH ROUND SHANK |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 1108 OR STEEL COMP 1110 OVERALL |
| Head Diameter | 0.656 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 |
|---|---|
| CB03118S256 PRIMARY | Urania Engineering Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| S31B256CSI | 3/9 Design control — primary reference Bfgoodrich Co the Aerospace Div Engineered Polymer Products |
| SC-D-681080-51 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5310-01-194-0663 is a Nut,plain,blind Rivet, manufactured by Urania Engineering Co., Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-194-0663 has 1 manufacturer part number on file: CB03118S256 (Urania Engineering Co., Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-419-8430. Verify interchangeability with system specifications before substitution.
Key specifications for CB03118S256: Nut Length: 1.297 INCHES MINIMUM AND 1.327 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC); Head Countersink Angle: 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM. 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.