The Retainer and Ball,l, cataloged under National Stock Number 2915-00-797-4170, is classified within Federal Supply Class 2915 (Engine Fuel System Components, Aircraft and Missile Prime Movers) of the Engine Accessories group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2915-00-797-4170 |
| Primary Part Number | 552390 |
| Item Name | Retainer and Ball,l |
| FSC / FSG | 2915 / 29 — Engine Fuel System Components, Aircraft and Missile Prime Movers |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Overall Diameter | 0.308 INCHES MAXIMUM IN |
| Supplementary Features | NO CRACKS SHALL BE VISIBLE AT LIP UNDER 5X MAGNIFICATION AFTER SPINNING AND AFTER MEETING REQUIREMENTS OF HS4524 |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 552390 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| 552390 | Bc Technical Center, Llc Dba Bc Engineered Products (USA) |
| Reference | Meaning |
|---|---|
| 552390 | 5/9 Secondary reference Hamilton Sundstrand Corporation Dba Collins Aerospace |
NSN 2915-00-797-4170 is a Retainer and Ball,l, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 2915, Engine Fuel System Components, Aircraft and Missile Prime Movers. Status: active.
NSN 2915-00-797-4170 has 2 manufacturer part numbers on file: 552390 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 552390 (Bc Technical Center, Llc Dba Bc Engineered Products).
Key specifications for 552390: Overall Diameter: 0.308 INCHES MAXIMUM IN; Supplementary Features: NO CRACKS SHALL BE VISIBLE AT LIP UNDER 5X MAGNIFICATION AFTER SPINNING AND AFTER MEETING REQUIREMENTS OF HS4524; Criticality Code Justification: FEAT; Special Features: CRITICAL SAFETY ITEM (CSI). 3 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.
NSN 2915-00-797-4170 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.