The Cap,pillow Block, cataloged under National Stock Number 3130-01-181-2571, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3130-01-181-2571 |
| Item Name | Cap,pillow Block |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Status | ACTIVE |
| General Characteristics Item Description | IRON,MIL-I-24137,O/A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| B-81272-A | 5/9 Secondary reference U.S. Government activity |
| 81150-A | 3/2 Design control — primary reference U.S. Government activity |
| D-215-8 ITEM 23 | 5/9 Secondary reference U.S. Government activity |
| 81150-A | 5/9 Secondary reference U.S. Government activity |
NSN 3130-01-181-2571 is a Cap,pillow Block, classified under FSC 3130, Bearings, Mounted. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6625-01-561-4550. Verify interchangeability with system specifications before substitution.
Key specifications for 3130-01-181-2571: General Characteristics Item Description: IRON,MIL-I-24137,O/A. 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.
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.