The Stem,needle Valve, cataloged under National Stock Number 4820-01-183-8980, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-183-8980 |
| Primary Part Number | D50668 ITEM 10 |
| Item Name | Stem,needle Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| D50668 ITEM 10 | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| V60 PIECE 10 | 5/1 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| D50668 | D/9 Drawing number reference only Hunt Valve Company Inc Dba Union Flonetics |
| D50668 ITEM 10 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| D23839 | 3/1 Design control — primary reference Hunt Valve Company Inc Dba Union Flonetics |
NSN 4820-01-183-8980 is a Stem,needle Valve, manufactured by Hunt Valve Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-183-8980 has 1 manufacturer part number on file: D50668 ITEM 10 (Hunt Valve Company, Inc.).
6 possible matches (shared part number, not a government interchangeability claim): 5310-01-484-0472, 4820-01-484-1320, 4820-01-485-1226. Verify interchangeability with system specifications before substitution.
Key specifications for D50668 ITEM 10: Criticality Code Justification: ZZZY; Special Features: CRES,0.312 IN. NOM THD DIA,NC THDS,18 PER IN. 2A THD CL,RH,0.500 IN. LG0.175 IN. W,0.186 PT DIA,0.408 IN. PT LG,0.908 IN. FASTENER LG A; End Item Identification: W/S ARLEIGH BURKE CLASS DDG; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 2 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.
NSN 4820-01-183-8980 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.