The Housing,relief Valve, cataloged under National Stock Number 4820-01-057-3375, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Granco Manufacturing Inc. Div Granco Pump. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-057-3375 |
| Primary Part Number | DK-PN-32 |
| Item Name | Housing,relief Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Granco Manufacturing Inc. Div Granco Pump |
| Status | ACTIVE |
| General Characteristics Item Description | BRONZE; 6 IN. LG; 3-1/4 IN. W; 3-3/8 IN. H; TOTAL SIX HOLES,13/32 IN. DIA.; 3 HOLES ALONG THE LG.,2-1/2 IN. CENTER TO CENTER; 2 HOLES ALONG THE W.,2-1/2 IN. CENTER TO CENTER; 2 THREADED HOLES; ONE HOLE LOCATED 1-3/4 IN. FROM END,7/16-20 UNF 2B; ONE HOLE LOCATED 1-1/8 IN. FROM END,1/4-18 NPT THREADED INTERNAL; BOTH HOLES LOCATED 3-1/8 IN. CENTER TO CENTER 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 |
|---|---|
| DK-PN-32 PRIMARY | Granco Manufacturing Inc. Div Granco Pump (USA) |
| Reference | Meaning |
|---|---|
| P 10 146 | D/9 Drawing number reference only Granco Manufacturing Inc. Div Granco Pump |
NSN 4820-01-057-3375 is a Housing,relief Valve, manufactured by Granco Manufacturing Inc. Div Granco Pump, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-057-3375 has 1 manufacturer part number on file: DK-PN-32 (Granco Manufacturing Inc. Div Granco Pump).
Key specifications for DK-PN-32: General Characteristics Item Description: BRONZE; 6 IN. LG; 3-1/4 IN. W; 3-3/8 IN. H; TOTAL SIX HOLES,13/32 IN. DIA.; 3 HOLES ALONG THE LG.,2-1/2 IN. CENTER TO CENTER; 2 HOLES ALONG THE W.,2-1/2 IN. CENTER TO CENTER; 2 THREADED HOLES; ONE HOLE LOCATED 1-3/4 IN. FROM END,7/16-20 UNF 2B; ONE HOLE LOCATED 1-1/8 IN. FROM END,1/4-18 NPT THREADED INTERNAL; BOTH HOLES LOCATED 3-1/8 IN. CENTER TO CENTER 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.