The Plate,retaining,bearing, cataloged under National Stock Number 3110-00-934-8166, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. 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. 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 | 3110-00-934-8166 |
| Primary Part Number | B1330 |
| Item Name | Plate,retaining,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| Minor Thickness | 0.530 INCHES NOMINAL IN |
| Bolt Circle Hole Quantity | 6 |
| Mounting Hole Type | ROUND, THREADED |
| Counterbore Diameter | 7.873 INCHES MINIMUM AND 7.878 INCHES MAXIMUM IN |
| Counterbore Depth | 0.330 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN |
| Mounting Hole Arrangement Style | SINGLE BOLT HOLE CIRCLE |
| Overall Thickness | 0.8610 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | COUNTERBORED W/ APERTURE |
| Outside Diameter | 9.660 INCHES MINIMUM AND 9.750 INCHES MAXIMUM IN |
| Aperture Diameter | 7.500 INCHES NOMINAL IN |
| Nominal Thread Size | 0.375 INCHES IN |
| Mounting Bolt Circle Diameter | 8.997 INCHES MINIMUM AND 9.003 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 16 |
| Material | IRON MALLEABLE OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| B1330 PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
NSN 3110-00-934-8166 is a Plate,retaining,bearing, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-934-8166 has 1 manufacturer part number on file: B1330 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
1 possible match (shared part number, not a government interchangeability claim): 5963-01-565-8952. Verify interchangeability with system specifications before substitution.
Key specifications for B1330: Minor Thickness: 0.530 INCHES NOMINAL IN; Bolt Circle Hole Quantity: 6; Mounting Hole Type: ROUND, THREADED; Counterbore Diameter: 7.873 INCHES MINIMUM AND 7.878 INCHES MAXIMUM IN. 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.