The Valve Assembly,1st Stage, cataloged under National Stock Number 4310-01-075-6607, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Mako Compressors, Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4310-01-075-6607 |
| Primary Part Number | N620 |
| Item Name | Valve Assembly,1st Stage |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Mako Compressors, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF THE FOLLOWING ITEMS,1 EA INTAKE VALVE CATCHER PART NO. H28-9,1 EA VALVE SPRING PART NO. H28-10,1 EA VALVE PLATE PART NO. H28-11,1 EA VALVE BODY INTAKE PART NO. H28-12 AND 1 EA LOCK NUT PART NO. H28-13 |
| 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 |
|---|---|
| N620 PRIMARY | Mako Compressors, Llc (USA) |
| Reference | Meaning |
|---|---|
| H28-8K | 5/9 Secondary reference Mako Compressors, Llc |
| N620K | 5/9 Secondary reference Mako Compressors, Llc |
NSN 4310-01-075-6607 is a Valve Assembly,1st Stage, manufactured by Mako Compressors, Llc, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-075-6607 has 1 manufacturer part number on file: N620 (Mako Compressors, Llc).
1 possible match (shared part number, not a government interchangeability claim): 4810-01-529-6113. Verify interchangeability with system specifications before substitution.
Key specifications for N620: General Characteristics Item Description: CONSISTS OF THE FOLLOWING ITEMS,1 EA INTAKE VALVE CATCHER PART NO. H28-9,1 EA VALVE SPRING PART NO. H28-10,1 EA VALVE PLATE PART NO. H28-11,1 EA VALVE BODY INTAKE PART NO. H28-12 AND 1 EA LOCK NUT PART NO. H28-13. 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.