The Tube,oil Breather, cataloged under National Stock Number 4710-00-790-6801, is classified within Federal Supply Class 4710 (Pipe, Tube and Rigid Tubing) of the Pipe, Tubing, Hose, and Fittings 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4710-00-790-6801 |
| Primary Part Number | 376939 |
| Item Name | Tube,oil Breather |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| General Characteristics Item Description | MATL:ALUMINUM ALLOY PER QQ-A-268-24ST4AL COND T4 (2024-T4);DIM.:1.147 IN. MIN AND 1.151 IN. MAX OD;SURFACE MACHINE MEDIUM FINISH 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 |
|---|---|
| 376939 | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| 376939 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| 74648 | 5/9 Secondary reference U.S. Government activity |
| 75659 | 5/9 Secondary reference U.S. Government activity |
| 376939 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4710-00-790-6801 is a Tube,oil Breather, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-00-790-6801 has 1 manufacturer part number on file: 376939 (Honeywell International Inc. Div Aerospace - Torrance).
1 possible match (shared part number, not a government interchangeability claim): 2915-00-992-1152. Verify interchangeability with system specifications before substitution.
Key specifications for 376939: General Characteristics Item Description: MATL:ALUMINUM ALLOY PER QQ-A-268-24ST4AL COND T4 (2024-T4);DIM.:1.147 IN. MIN AND 1.151 IN. MAX OD;SURFACE MACHINE MEDIUM FINISH 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.