The Cooler,compressed Air,compressor, cataloged under National Stock Number 4310-00-690-3207, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Dresser Industries Inc Leroi Div. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4310-00-690-3207 |
| Primary Part Number | AH55-977 |
| Item Name | Cooler,compressed Air,compressor |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | ACTIVE |
| General Characteristics Item Description | W/ PROVISION FOR MOUNTING |
| 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 |
|---|---|
| AH55-977 PRIMARY | Dresser Industries Inc Leroi Div (USA) |
| Reference | Meaning |
|---|---|
| 185632 | 3/2 Design control — primary reference U.S. Government activity |
| AH55-1198 | 5/9 Secondary reference Dresser Industries Inc Leroi Div |
NSN 4310-00-690-3207 is a Cooler,compressed Air,compressor, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-00-690-3207 has 1 manufacturer part number on file: AH55-977 (Dresser Industries Inc Leroi Div).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-400-2744. Verify interchangeability with system specifications before substitution.
Key specifications for AH55-977: General Characteristics Item Description: W/ PROVISION FOR MOUNTING. 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.