The Unloader Assembly,valve, cataloged under National Stock Number 4310-00-489-5910, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4310-00-489-5910 |
| Primary Part Number | 111060-002 |
| Item Name | Unloader Assembly,valve |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor |
| Status | ACTIVE |
| General Characteristics Item Description | BRASS; SPRING LOADED;2 CONNECTIONS 180 DEG APART;1/8-27 NPT RH FEMALE;FLANGE MTD;2 IN.SQ;4 MTG HOLES;0.280 IN. DIA;1-9/16 IN.C TO CALONG THE LG. IN |
| 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 |
|---|---|
| 111060-002 PRIMARY | Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA) |
| Reference | Meaning |
|---|---|
| 6278X1 | 5/9 Secondary reference Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor |
NSN 4310-00-489-5910 is a Unloader Assembly,valve, manufactured by Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-00-489-5910 has 1 manufacturer part number on file: 111060-002 (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor).
1 possible match (shared part number, not a government interchangeability claim): 2840-00-727-4669. Verify interchangeability with system specifications before substitution.
Key specifications for 111060-002: General Characteristics Item Description: BRASS; SPRING LOADED;2 CONNECTIONS 180 DEG APART;1/8-27 NPT RH FEMALE;FLANGE MTD;2 IN.SQ;4 MTG HOLES;0.280 IN. DIA;1-9/16 IN.C TO CALONG THE LG. 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.