The Seat,valve, cataloged under National Stock Number 4820-01-168-8076, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-168-8076 |
| Primary Part Number | 1-107992-579-02-00 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| Status | ACTIVE |
| Thread Length | 0.578 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Style Designator | FAUCET |
| Material Document and Classification | ASTM A473 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 4.187 INCHES MINIMUM AND 4.188 INCHES MAXIMUM IN |
| Nominal Thread Size | 5.000 INCHES SINGLE THREADED PORTION IN |
| Thread Class | 3A SINGLE THREADED PORTION A |
| Material | STEEL COMP 416 OVERALL |
| Thread Series Designator | UNF SINGLE THREADED PORTION |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| 1-107992-579-02-00 PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 056420 ITEM 20 | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| Reference | Meaning |
|---|---|
| 107992 | 5/9 Secondary reference William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| 056420 | D/9 Drawing number reference only William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
NSN 4820-01-168-8076 is a Seat,valve, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-168-8076 has 2 manufacturer part numbers on file: 1-107992-579-02-00 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), 056420 ITEM 20 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
Key specifications for 1-107992-579-02-00: Overall Height: 4.994 INCHES MINIMUM AND 4.996 INCHES MAXIMUM IN; Thread Length: 0.578 INCHES NOMINAL SINGLE THREADED PORTION IN; Style Designator: FAUCET; Material Document and Classification: ASTM A473 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 9 specifications are 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.