# Power steering pump nut B (NA6)

Canonical URL: https://miatatorque.com/spec/power-steering-pump-nut-b-na6/

Applicability: NA 1990–1993 (B6) — 1991–1993 applicability inferred from 1990 factory evidence within the owner-approved NA6 group.

Confidence: fsm

27–40 ft·lb / 36–54 N·m

Always confirm against your factory manual. Match every restriction and follow all stages and procedure notes. Disputed claims must not be automatically resolved. The complete record below preserves every printed unit, source claim and procedure.

```json
{
  "id": "power-steering-pump-nut-b-na6",
  "name": "Power steering pump nut B (NA6)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NA",
      "years": [
        1990,
        1993
      ],
      "engines": [
        "B6"
      ],
      "note": "1991–1993 applicability inferred from 1990 factory evidence within the owner-approved NA6 group."
    }
  ],
  "kind": "torque",
  "torque": {
    "nm": [
      36,
      54
    ],
    "kgfm": [
      3.7,
      5.5
    ],
    "ftlb": [
      27,
      40
    ]
  },
  "procedure": {
    "notes": "B–6 identifies nut B at the lower pump mounting point. Adjust belt tension before final tightening; nut C has a separate value."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-1990",
      "page": "B–6 (PDF p. 33)",
      "as_printed": "36—54 N·m (3.7—5.5 m-kg, 27—40 ft-lb)",
      "torque": {
        "nm": [
          36,
          54
        ],
        "kgfm": [
          3.7,
          5.5
        ],
        "ftlb": [
          27,
          40
        ]
      },
      "document": {
        "id": "fsm-1990",
        "tier": 1,
        "title": "1990 Mazda MX-5 Miata Workshop Manual",
        "part_number": "1193-10-89C",
        "covers": [
          {
            "gen": "NA",
            "years": [
              1990,
              1990
            ],
            "engines": [
              "B6"
            ]
          }
        ],
        "url": "https://archive.org/details/1990-mazda-mx-5-miata-workshop-manual_202411"
      }
    }
  ],
  "jobs": [],
  "system": "steering",
  "component": "reaudit-1990",
  "componentName": "Additional NA6 factory specifications",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/power-steering-pump-nut-b-na6/"
}
```