The Liner,bearing Housing, cataloged under National Stock Number 3130-00-271-1542, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Aero Precision Industries Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3130-00-271-1542 |
| Primary Part Number | 712121 |
| Item Name | Liner,bearing Housing |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Aero Precision Industries Llc |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL AISI 4140,0.438 IN. LG,3.047 IN. ID,2.890 IN. FLANGE IDONE END,3.2399 IN. BODY OD IN |
| 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 |
|---|---|
| 712121 | Aero Precision Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| 712121 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3130-00-271-1542 is a Liner,bearing Housing, manufactured by Aero Precision Industries Llc, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-271-1542 has 1 manufacturer part number on file: 712121 (Aero Precision Industries Llc).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-037-1411. Verify interchangeability with system specifications before substitution.
Key specifications for 712121: General Characteristics Item Description: STEEL AISI 4140,0.438 IN. LG,3.047 IN. ID,2.890 IN. FLANGE IDONE END,3.2399 IN. BODY OD IN. 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 3130-00-271-1542 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.