The Housing,bearing Unit, cataloged under National Stock Number 3130-01-077-0305, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Pti Technologies Inc.. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-077-0305 |
| Primary Part Number | 4-569-11 |
| Item Name | Housing,bearing Unit |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Pti Technologies Inc. |
| Status | ACTIVE |
| Mounting Hole Type | ROUND, UNTHREADED |
| Material Document and Classification | QQ-A-601 T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Diameter | 0.2200 INCHES MINIMUM AND 0.2270 INCHES MAXIMUM IN |
| Overall Outside Diameter | 5.2000 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Bore Diameter | 2.9620 INCHES MINIMUM AND 2.9650 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY OVERALL |
| Housing Length | 10.1450 INCHES MINIMUM AND 10.1550 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 4-569-11 PRIMARY | Pti Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4-569-11 | 3/9 Design control — primary reference Vacco Industries |
| 4-569-11 | 5/9 Secondary reference Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator |
NSN 3130-01-077-0305 is a Housing,bearing Unit, manufactured by Pti Technologies Inc., classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-077-0305 has 1 manufacturer part number on file: 4-569-11 (Pti Technologies Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5962-01-111-7476, 4710-01-302-7352. Verify interchangeability with system specifications before substitution.
Key specifications for 4-569-11: Mounting Hole Type: ROUND, UNTHREADED; Material Document and Classification: QQ-A-601 T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Mounting Hole Diameter: 0.2200 INCHES MINIMUM AND 0.2270 INCHES MAXIMUM IN; Overall Outside Diameter: 5.2000 INCHES NOMINAL IN. 8 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.