The Crossmember, cataloged under National Stock Number 6620-00-656-3702, is classified within Federal Supply Class 6620 (Engine Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Honeywell International, Inc Div Aerospace-Tucson. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6620-00-656-3702 |
| Primary Part Number | 23730 |
| Item Name | Crossmember |
| FSC / FSG | 6620 / 66 — Engine Instruments |
| Manufacturer | Honeywell International, Inc Div Aerospace-Tucson |
| Status | ACTIVE |
| FSC Application Data | ENGINE INSTRUMENT,AIRCRAFT |
| General Characteristics Item Description | CORROSION RESISTANT STEEL,2.130 IN. LG,0.400 IN. W,0.160 IN. THKWITH A 0.390 IN. DIA HUB EXTENDING 0.140 IN. ON ONE SIDE AND AN 0.260 IN.DIA HUB EXTENDING 0.040 IN. FROM OPPOSITE SIDE IN CENTER OF CROSSMEMBER,HUB IS DRILLED 0.173 IN. DIA HOLE AND TAPPED WITH 10&56 NS&3 THREADS,ITEMHAS A 0.125 IN. DIA HOLE NEAR EACH END 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 |
|---|---|
| 23730 PRIMARY | Honeywell International, Inc Div Aerospace-Tucson (USA) |
| Reference | Meaning |
|---|---|
| 23730 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| 23730 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
NSN 6620-00-656-3702 is a Crossmember, manufactured by Honeywell International, Inc Div Aerospace-Tucson, classified under FSC 6620, Engine Instruments. Status: active.
NSN 6620-00-656-3702 has 1 manufacturer part number on file: 23730 (Honeywell International, Inc Div Aerospace-Tucson).
1 possible match (shared part number, not a government interchangeability claim): 5910-00-947-6978. Verify interchangeability with system specifications before substitution.
Key specifications for 23730: FSC Application Data: ENGINE INSTRUMENT,AIRCRAFT; General Characteristics Item Description: CORROSION RESISTANT STEEL,2.130 IN. LG,0.400 IN. W,0.160 IN. THKWITH A 0.390 IN. DIA HUB EXTENDING 0.140 IN. ON ONE SIDE AND AN 0.260 IN.DIA HUB EXTENDING 0.040 IN. FROM OPPOSITE SIDE IN CENTER OF CROSSMEMBER,HUB IS DRILLED 0.173 IN. DIA HOLE AND TAPPED WITH 10&56 NS&3 THREADS,ITEMHAS A 0.125 IN. DIA HOLE NEAR EACH END IN; End Item Identification: 66206308812. 2 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.