The Retainer,bearing, cataloged under National Stock Number 1660-00-941-7405, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 1660-00-941-7405 |
| Primary Part Number | 529138 |
| Item Name | Retainer,bearing |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY 61ST6 QQ-A-270 OR QQ-A-325;0.245 IN. MIN 0.270 IN. MAX OD;0.045 IN. MIN 0.055 IN. MAX THK;0.128 IN. MIN 0.132 IN. MAX DIA CENTER HOLE;COUNTERBORED 0.020 IN. MIN 0.030 IN. MAX DEEP TO 0.210 IN. MIN 0.220 IN. MAX DIA IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 1660-00-941-7405 is a Retainer,bearing, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-941-7405 has 2 manufacturer part numbers on file: 529138 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 529138 (Honeywell International Inc. Div Aerospace - Torrance).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-363-9799. Verify interchangeability with system specifications before substitution.
Key specifications for 529138: General Characteristics Item Description: ALUMINUM ALLOY 61ST6 QQ-A-270 OR QQ-A-325;0.245 IN. MIN 0.270 IN. MAX OD;0.045 IN. MIN 0.055 IN. MAX THK;0.128 IN. MIN 0.132 IN. MAX DIA CENTER HOLE;COUNTERBORED 0.020 IN. MIN 0.030 IN. MAX DEEP TO 0.210 IN. MIN 0.220 IN. MAX DIA 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.
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.