NSN 4820-01-509-0244 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-509-0244. Manufacturer of record part number: 515-6985002-A9.
The Body,valve, cataloged under National Stock Number 4820-01-509-0244, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-509-0244
Primary Part Number
515-6985002-A9
Item Name
Body,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL D — Destroy Item
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4310-01-509-0247515-6985002-11POSSIBLE MATCH
CONE,TAIL
Possible match (shared part number)Naval Sea Systems Command
4310-01-509-0253515-6985002-12POSSIBLE MATCH
CONE,NOSE
Possible match (shared part number)Naval Sea Systems Command
2990-01-679-4168H4440601-A8POSSIBLE MATCH
MUFFLER,SPECIAL
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-714-83936985002-PT-10POSSIBLE MATCH
SLEEVE,COMPRESSION,TUBE-HOSE FIT
Possible match (shared part number)Naval Sea Systems Command
NSN 4820-01-509-0244 is a Body,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-509-0244?
NSN 4820-01-509-0244 has 1 manufacturer part number on file: 515-6985002-A9 (Naval Sea Systems Command).
What NSN replaces 4820-01-509-0244?
4 possible matches (shared part number, not a government interchangeability claim): 4310-01-509-0247, 4310-01-509-0253, 2990-01-679-4168. Verify interchangeability with system specifications before substitution.
What are the specifications of 515-6985002-A9?
Key specifications for 515-6985002-A9: Part Name Assigned by Controlling Agency: DIFFUSER BODY ASSY.; End Item Identification: DIFFUSER MUFFLER ASSY., WSD: VIRGINIA CLASS SUBMARINE. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-509-0244 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.
What is the DEMIL code for NSN 4820-01-509-0244?
NSN 4820-01-509-0244 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.