The Retainer,spring Sea, cataloged under National Stock Number 1650-00-053-5146, 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 Mil-Craft Mfg., Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-053-5146 |
| Primary Part Number | 2-43274-1 |
| Item Name | Retainer,spring Sea |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Mil-Craft Mfg., Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,0.188 IN. LG,1.188 IN. OD,0.622 TO 0.628 IN. BORE DIA,0.690 TO 0.700 IN. COUNTERBORE 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 |
| Part Number | Manufacturer |
|---|---|
| 2-43274-1 | Mil-Craft Mfg., Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2-43274-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 2-43274-1 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 1650-00-053-5146 is a Retainer,spring Sea, manufactured by Mil-Craft Mfg., Inc., classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-053-5146 has 1 manufacturer part number on file: 2-43274-1 (Mil-Craft Mfg., Inc.).
Key specifications for 2-43274-1: General Characteristics Item Description: STEEL,0.188 IN. LG,1.188 IN. OD,0.622 TO 0.628 IN. BORE DIA,0.690 TO 0.700 IN. COUNTERBORE 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.