The Block,sight Flow, cataloged under National Stock Number 4310-01-176-9545, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-176-9545 |
| Item Name | Block,sight Flow |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Status | ACTIVE |
| General Characteristics Item Description | BRASS; 14 IN. APPROX LG; 4 IN. APPROX W IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 6175B | 5/9 Secondary reference U.S. Government activity |
| 200112L PC 387 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 200112L | D/9 Drawing number reference only U.S. Government activity |
| 200112L PC 387 | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 200112L PC 387 | 5/9 Secondary reference U.S. Government activity |
NSN 4310-01-176-9545 is a Block,sight Flow, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
5 possible matches (shared part number, not a government interchangeability claim): 4310-01-191-8496, 4310-01-191-8497, 4310-01-191-8591. Verify interchangeability with system specifications before substitution.
Key specifications for 4310-01-176-9545: General Characteristics Item Description: BRASS; 14 IN. APPROX LG; 4 IN. APPROX W IN; End Item Identification: WORTHINGTON COMPRESSOR CLASS AA. 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.