The Retainer,roller,bearing, cataloged under National Stock Number 3110-01-508-9403, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Thomas Instrument, Incorporated. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-508-9403 |
| Primary Part Number | NF203538-1 |
| Item Name | Retainer,roller,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Thomas Instrument, Incorporated |
| Status | ACTIVE |
| Style Designator | RETAINER AND ROLLERS, THRUST |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| NF203538-1 PRIMARY | Thomas Instrument, Incorporated (USA) |
| Reference | Meaning |
|---|---|
| NF203538-1 | 5/9 Secondary reference Speco Corp |
NSN 3110-01-508-9403 is a Retainer,roller,bearing, manufactured by Thomas Instrument, Incorporated, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-508-9403 has 1 manufacturer part number on file: NF203538-1 (Thomas Instrument, Incorporated).
Key specifications for NF203538-1: Style Designator: RETAINER AND ROLLERS, THRUST; Special Features: SITS BETWEEN NF203128-1 RACE,BEARING AND RETAINER,SPRING NF203128-1;ROTATES ON SHAFT,DRIVE NF203138-1; End Item Identification: B-1BACFT;TORQUE LIMITER ASSEMBLY,SLAT. 1 specification is 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.
NSN 3110-01-508-9403 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.