NSN 4820-01-307-6187 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-307-6187. Manufacturer of record part number: 501-6160771 ASSY 97.
The Gear Operator,valve, cataloged under National Stock Number 4820-01-307-6187, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 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. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-307-6187
Primary Part Number
501-6160771 ASSY 97
Item Name
Gear Operator,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Valve Type for Which Designed
VENT
Material
STEEL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3040-01-307-7216501-6160771 DETAIL 6-5BPOSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3040-01-307-7290501-6160771 DETAIL 6-7APOSSIBLE MATCH
LEVER,MANUAL CONTROL
Possible match (shared part number)Naval Sea Systems Command
2520-01-308-0573501-6160771 DETAIL 6-8CPOSSIBLE MATCH
YOKE,UNIVERSAL JOINT,VEHICULAR
Possible match (shared part number)Naval Sea Systems Command
3040-01-310-1773501-6160771 DETAIL 7-3APOSSIBLE MATCH
LEVER,MANUAL CONTROL
Possible match (shared part number)Naval Sea Systems Command
4820-01-324-68352680-1341 ASSY 98POSSIBLE MATCH
OPERATING GEAR,VALV
Possible match (shared part number)Huntington Ingalls Inc Div Newport News Shipbuilding
NSN 4820-01-307-6187 is a Gear Operator,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-307-6187?
NSN 4820-01-307-6187 has 2 manufacturer part numbers on file: 501-6160771 ASSY 97 (Naval Sea Systems Command), 501-6160771 (Naval Sea Systems Command).
What NSN replaces 4820-01-307-6187?
5 possible matches (shared part number, not a government interchangeability claim): 3040-01-307-7216, 3040-01-307-7290, 2520-01-308-0573. Verify interchangeability with system specifications before substitution.
What are the specifications of 501-6160771 ASSY 97?
Key specifications for 501-6160771 ASSY 97: Valve Type for Which Designed: VENT; Material: STEEL. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-307-6187 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.