The Collar,spring Retainer, cataloged under National Stock Number 2940-00-377-5184, is classified within Federal Supply Class 2940 (Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Cummins Inc.. 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 | 2940-00-377-5184 |
| Primary Part Number | 20663-22 |
| Item Name | Collar,spring Retainer |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL;CADMIUM PLATED;0.651 IN. O/A DIA;0.377 IN. DIA CENTER HOLE;0.125 IN. THK 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 2940-00-377-5184 is a Collar,spring Retainer, manufactured by Cummins Inc., classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-00-377-5184 has 2 manufacturer part numbers on file: 20663-22 (Cummins Inc.), A16075-56 (Falls Filtration Technologies, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5310-00-596-8838. Verify interchangeability with system specifications before substitution.
Key specifications for 20663-22: General Characteristics Item Description: STEEL;CADMIUM PLATED;0.651 IN. O/A DIA;0.377 IN. DIA CENTER HOLE;0.125 IN. THK 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.