The Bearing,roller,rod End, cataloged under National Stock Number 3110-00-293-8372, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Rexnord Industries, Llc Div Aerosspace Bearing Operation. Government technical data includes 28 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-293-8372 |
| Primary Part Number | GB525B4W |
| Item Name | Bearing,roller,rod End |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Rexnord Industries, Llc Div Aerosspace Bearing Operation |
| Status | ACTIVE |
| Shank Diameter | 0.3750 INCHES NOMINAL IN |
| Shank Thread Length | 1.0000 INCHES NOMINAL IN |
| Bearing Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Outer Ring Width | 0.3600 INCHES NOMINAL IN |
| Shield Quantity | 2 |
| Style Designator | SINGLE ROW, CONCAVE ROLLERS |
| Material Document and Classification | MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE ROLLER |
| Material Document and Classification | MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE INNER RING |
| Material Document and Classification | MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE STUD |
| Overall Outside Diameter | 1.0800 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Self-Alignment Angle | 10.00 DEGREES NOMINAL |
| Shank Style | EXTERNALLY THREADED |
| Alignment Type | SELF-ALIGNING |
| Surface Treatment | CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES |
| Seal Quantity | 2 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Bore Diameter | 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Length From Bore Center to Shank End | 1.8250 INCHES MINIMUM AND 1.8550 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC SEAL |
| Material | STEEL COMP E52100 ROLLER |
| Material | STEEL COMP E52100 INNER RING |
| Material | STEEL CORROSION RESISTING SHIELD |
| Material | STEEL COMP E52100 STUD |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| GB525B4W PRIMARY | Rexnord Industries, Llc Div Aerosspace Bearing Operation (USA) |
| Reference | Meaning |
|---|---|
| GB525B4W | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| SM4-6T-5 | 5/1 Secondary reference Rexnord Industries, Llc Div Aerosspace Bearing Operation |
| MR4W | 5/9 Secondary reference Rexnord Industries, Llc Div Aerosspace Bearing Operation |
| TS1609-2 | 5/1 Secondary reference U.S. Government activity |
NSN 3110-00-293-8372 is a Bearing,roller,rod End, manufactured by Rexnord Industries, Llc Div Aerosspace Bearing Operation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-293-8372 has 1 manufacturer part number on file: GB525B4W (Rexnord Industries, Llc Div Aerosspace Bearing Operation).
Key specifications for GB525B4W: Shank Diameter: 0.3750 INCHES NOMINAL IN; Shank Thread Length: 1.0000 INCHES NOMINAL IN; Bearing Seal Type: CONTACT; Lubrication Material: GREASE. 28 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.