The Cap,spring Adjusting, cataloged under National Stock Number 1650-00-321-4593, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-321-4593 |
| Primary Part Number | 665602 |
| Item Name | Cap,spring Adjusting |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| General Characteristics Item Description | CRES,0.580 TO 0.590 IN. LG,0.616 TO 0.618 IN. MAJOR OD,8/36NF-3B THREADS,0.220 TO 0.230 IN. SEAL GROOVE WIDTH,0.050 IN. SEAL GROOVE DEPTH 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 |
|---|---|
| 665602 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| 665602 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| 76441-2 | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| 76441-2 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| 76441-2 | 3/2 Design control — primary reference U.S. Government activity |
| 665602 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| 665602 | 5/9 Secondary reference U.S. Government activity |
NSN 1650-00-321-4593 is a Cap,spring Adjusting, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-321-4593 has 3 manufacturer part numbers on file: 665602 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)), 665602 (Honeywell International Inc. Div Aerospace - Torrance), 76441-2 (Honeywell International Inc. Div Aerospace - Torrance).
Key specifications for 665602: General Characteristics Item Description: CRES,0.580 TO 0.590 IN. LG,0.616 TO 0.618 IN. MAJOR OD,8/36NF-3B THREADS,0.220 TO 0.230 IN. SEAL GROOVE WIDTH,0.050 IN. SEAL GROOVE DEPTH 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.