The Retainer,pad Valve, cataloged under National Stock Number 4820-01-213-0058, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Derbyshire Machine & Tool Co. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-213-0058 |
| Primary Part Number | 71553-79X6 PC3 |
| Item Name | Retainer,pad Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| General Characteristics Item Description | NICKEL-COPPER,QQ-N-281; 1.562 IN. LG,2.000 IN. H; TWO DRILLED THRU COUNTERSUNK HOLES 0.406 IN. DIA; 0.375 IN. THK; 1.000 IN. C TO C OF HOLES ALONG THE HEIGHT; 0.500 IN. C TO C OF HOLES ALONG THE LENGTH; T-SHAPED 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 |
|---|---|
| 71553-79X6 PC3 PRIMARY | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 71553-79X6 PIECE 3 | 3/2 Design control — primary reference U.S. Government activity |
| SSN671-515-2047294 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-213-0058 is a Retainer,pad Valve, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-213-0058 has 1 manufacturer part number on file: 71553-79X6 PC3 (Derbyshire Machine & Tool Co).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-213-4753, 4820-01-214-7188. Verify interchangeability with system specifications before substitution.
Key specifications for 71553-79X6 PC3: General Characteristics Item Description: NICKEL-COPPER,QQ-N-281; 1.562 IN. LG,2.000 IN. H; TWO DRILLED THRU COUNTERSUNK HOLES 0.406 IN. DIA; 0.375 IN. THK; 1.000 IN. C TO C OF HOLES ALONG THE HEIGHT; 0.500 IN. C TO C OF HOLES ALONG THE LENGTH; T-SHAPED 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.