The Interlock Assembly,ejection Pump, cataloged under National Stock Number 4320-01-211-5349, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Derbyshire Machine & Tool Co. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-211-5349 |
| Primary Part Number | 87553-1506 ITEM2 |
| Item Name | Interlock Assembly,ejection Pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| General Characteristics Item Description | LEFT SIDE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 87553-1506 ITEM2 | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 708-4674149 ITEM 2 | 5/2 Secondary reference U.S. Government activity |
| 87553-1506 ITEM 2 | 5/2 Secondary reference U.S. Government activity |
| 708-4674149 | D/9 Drawing number reference only U.S. Government activity |
| 4674149-0002 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4320-01-211-5349 is a Interlock Assembly,ejection Pump, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-211-5349 has 1 manufacturer part number on file: 87553-1506 ITEM2 (Derbyshire Machine & Tool Co).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-211-5350. Verify interchangeability with system specifications before substitution.
Key specifications for 87553-1506 ITEM2: General Characteristics Item Description: LEFT SIDE. 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.
NSN 4320-01-211-5349 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.