The Trap,oil, cataloged under National Stock Number 4920-01-310-0528, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Armstrong International Inc Dba Armstrong Machine Works. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4920-01-310-0528 |
| Primary Part Number | TYPE11-LD#38 |
| Item Name | Trap,oil |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Armstrong International Inc Dba Armstrong Machine Works |
| Status | ACTIVE |
| General Characteristics Item Description | 2.750 IN. O/A DIAMETER; 7.250 IN. LG; OPR. RANGE M40.0 TO P250.0 F; DISCHARGE OIL FROM GAS UNDER A DIFFERENTIAL PRESSURE OF 1 AT A RATE OF 10 LB PER HOUR; TAMPER-PROOF CONSTRUCTION; PRESSURE RANGE: UP TO 150 PSI LBS |
| 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 |
|---|---|
| TYPE11-LD#38 PRIMARY | Armstrong International Inc Dba Armstrong Machine Works (USA) |
| Reference | Meaning |
|---|---|
| 5SE00841-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 5SE00841-1 | 5/9 Secondary reference Naval Air Warfare Center Aircraft Division Code 1.3.1 Bldg 562-1 |
NSN 4920-01-310-0528 is a Trap,oil, manufactured by Armstrong International Inc Dba Armstrong Machine Works, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-310-0528 has 1 manufacturer part number on file: TYPE11-LD#38 (Armstrong International Inc Dba Armstrong Machine Works).
Key specifications for TYPE11-LD#38: General Characteristics Item Description: 2.750 IN. O/A DIAMETER; 7.250 IN. LG; OPR. RANGE M40.0 TO P250.0 F; DISCHARGE OIL FROM GAS UNDER A DIFFERENTIAL PRESSURE OF 1 AT A RATE OF 10 LB PER HOUR; TAMPER-PROOF CONSTRUCTION; PRESSURE RANGE: UP TO 150 PSI LBS. 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.